Question: Who is the sports announcer on Showtime Championship Boxing?

Context paragraphs:
Boxing After Dark: Boxing After Dark is an HBO boxing program, premiering in April 1996, that usually shows fights between well-known contenders, but usually not "championship" or "title" fights.  Unlike its sister program, "HBO World Championship Boxing", "BAD" features fighters who are usually moving up from ESPN's "Friday Night Fights" or another basic cable boxing program.  This is where fighters are given their start to become famous depending on how well they fare on "BAD" they might have a title fight on "World Championship Boxing" or could fall back (Ex: Jason Litzau had many entertaining fights on ESPN before moving up to "BAD" to face Jose Hernandez.  After Litzau lost by knockout he returned to "FNF")

Jay Larkin: Jay Larkin (October 23, 1950 – August 9, 2010) was a television boxing and entertainment executive.  During his more than twenty years with the cable network Showtime, from 1984 to 2005, Larkin created and produced such programs as "Showtime Championship Boxing" and "ShoBox" as a pay-per-view sports phenomenon, rising from publicist to senior vice president and executive producer en route to becoming one of the most powerful successful persons in the television boxing business, promoting major boxing events.  Larkin also brought MMA to television, but was less successful.

Jimmy Lennon Jr.: Jimmy Lennon Jr. (born August 5, 1958 in Santa Monica, California) is an American boxing ring announcer who is employed primarily by Showtime as ring announcer for its "Showtime Championship Boxing" events.  Lennon was also employed by Fox Sports when the Fox network had rights to professional boxing and was the ring announcer for Don King Promotions' fights that aired on various networks (including HBO, although King has largely promoted fights for Showtime since 1991).  He is best known for his catchphrase, "It's show time!"

Alan Roach: Alan Roach is an American sports announcer and radio personality.  He currently is the public address announcer for professional sports teams Minnesota Vikings, Colorado Avalanche, and Colorado Rapids.  Roach is also the Voice of NFL Events worldwide and an announcer at 5 International Olympic Games.  He is the voice of the underground train system in Denver International Airport.  His announcing credits include 8 Super Bowls, 5 Olympic Gold Medal Hockey games, and multiple All-Star games for the National Football League, National Hockey League, and Major League Baseball.

Mark Potter (sportscaster): Mark Potter (born June 13, 1960 in Kingston, Ontario) has been a well-known sports broadcaster in Eastern Ontario for over thirty years.  Born and raised in Portsmouth Village in Kingston, Potter has worked both hockey and baseball broadcasts on TV & radio spanning four decades.  His sports broadcasting career began in 1981 when he replaced Chris Cuthbert (now lead sports announcer at TSN) as the colour man for Jim Gilchrist on Kingston Canadians Ontario Hockey League radio broadcasts for seven seasons.  Potter began his television career in 1981 at CKWS TV in Kingston, Ontario working alongside the legendary Max Jackson (member of the Kingston & District Sports Hall of Fame).  Max retired in 1982 and Potter became Sports Director at CKWS TV & Radio.  He anchored the nightly sports reports on the six o'clock and 11 o'clock evening newscasts on CKWS-TV for eleven years.  He built a reputation as a colourful, outspoken commentator and his favourite target was the hapless Toronto Maple Leafs teams of that era.  Potter left CKWS in 1992 to start a new career as an Investment Advisor, but has continued working as a freelance broadcaster with TVCogeco in Kingston.  He hosted a weekly one-hour local sports interview show called 'SportsMark'.  It ran for five-years and after a brief hiatus he returned hosting a weekly 30-minute sports interview program called 'Sports Profiles'.  Potter has been the TV play by play voice of the Kingston Ponies Senior baseball team on TVCogeco since the late 1980s and for the past ten-years has hosted Kingston Frontenacs OHL broadcasts on TVCogeco.  In addition he hosts a weekly OHL intermission feature called 'The OHL Roundtable" that is shown in several OHL cities.  Potter began his career as a radio announcer at CKWS/CFMK radio in the late 1970s after graduating from Loyalist College in Belleville, Ontario from the Broadcast Journalism program.  He anchored TV sports in Kingston starting at the age of twenty; the youngest anchor in the history of CKWS-TV, a station that goes back to the mid-1950s.  Potter also does radio work as the occasional co-host of the 'Big G & Mathews' morning drive show on KIX Country 93.5fm in Kingston.  In 2005 he won a prestigious TVCogeco STAR Award for being named the top broadcaster in Ontario for Cogeco stations.  A dedicated longtime community volunteer Potter has been a finalist for Kingston's Citizen of the Year award and a recipient of the Paul Harris Fellow; the highest honour given by Rotary International for community service.  He is in his tenth year as President of the International Hockey Hall of Fame in Kingston, Ontario, Canada and has been on the Board of Directors since the early 1980s.  In 2003, he co-authored a book with J.W. 'Bill' Fitsell "Hockey's Hub-Three Centuries of Hockey in Kingston," (published by Quarry Press) that chronicles Kingston's rich hockey heritage.

Jerry Baker (announcer): Jerry Baker is well known and recognizable as a veteran sports announcer in Indiana.  He is best known as the voice of the Indiana High School Athletic Association (IHSAA) Basketball State Championships on television having served as the anchor announcer for nearly 30 years.  He is the former voice of the Indiana Pacers and currently is a reporter for the Indy Racing League (IRL), and the Brickyard 400.  He has long held the position as the turn 1 announcer on the Indianapolis Motor Speedway Radio Network during the airing of the Indianapolis 500.  Baker, most recently, was the play-by-play announcer for HomeTown Sports and News (HTSN) on Friday nights on WRTV digital side channel 6.2 and Hometown Sports Indiana.

Amy Faye Hayes: Amy Hayes (born November 24, 1973) is an American Ring Announcer and model.  She is the first female ring announcer for the sport of boxing in the world.  She is a regular on Fox Sports Net.  and a former regular on ESPN2's Friday Night Fights, Amy has also announced on United States, ESPN, and Showtime.  She has also been featured on Best Damn Sports Show Period.  Her biggest breakthrough was becoming the exclusive Ring Announcer on Fox Sport's networks "Sunday Night Fights" series - under Promoter Dan Goossen, in 2001.  Amy first broke the glass ceiling when she was asked to announce the very first episode of on Showtime.  Both were the first for a female.

Joe Antonacci: Joe Antonacci (ring announcer) (born August 9, 1960, Ridgewood, New Jersey) is a noted boxing ring announcer and emcee famous for his televised boxing ring appearances in a tuxedo on ESPN's Friday Night Fights, NBC Sports Network, HBO, Showtime, and GoFightLive.TV.  Nicknamed 'Generous Joe', he donates all of his ring earnings to assist injured and retired amateur and professional boxers in need, to overcome their disabilities incurred as a result of bouts in the ring, and to amateur boxing organizations.  Antonacci also serves as a ring announcer for mixed martial arts fights.

Mauro Ranallo: Mauro Domenico Ranallo (born December 21, 1969) is a Canadian sports announcer and commentator.  He is currently signed as a play-by-play announcer with MMA organization Bellator, professional wrestling promotion WWE (on their NXT brand) and also performs play-by-play duties for boxing broadcaster Showtime, most notably, the Floyd Mayweather Jr. vs. Conor McGregor bout.  He began announcing when he was 16 years old and is notable for his dramatic style, which involves heavy use of metaphor, puns, and an advanced vocabulary.  He has experience in Canadian football, ice hockey, professional wrestling, boxing, kickboxing, and mixed martial arts events.

Showtime Championship Boxing: Showtime Championship Boxing is a television boxing program airing on Showtime.  Debuting in March 1986, it is broadcast live on the first Saturday of every month.  "Showtime Championship Boxing", which is very similar to "HBO World Championship Boxing", features Mauro Ranallo on play-by-play, Al Bernstein as the color analyst, Jimmy Lennon (Sr. and Jr.) as announcers, and Jim Gray as reporter.

Supporting paragraphs: Showtime Championship Boxing Mauro Ranallo
Answer: Mauro Domenico Ranallo (born December 21, 1969) is a Canadian sports announcer and commentator.