Question: Alex Trebek hosted a game show in the 1970's that help shape him into the television personality he as become and the host of what syndicated game show?

Context articles: What Is... Cliff Clavin?
Jep!
I Lost on Jeopardy
Headline Chasers
Double Dare (CBS game show)
Pitfall (game show)
The Wizard of Odds
Jeopardy! Battle of the Decades
Alex Trebek
Celebrity Name Game

"What Is... Cliff Clavin?"
 is an eighth season episode of the American television series "Cheers".
 It was directed by Andy Ackerman rather than James Burrowswho directed 243 out of 273 episodes of the showand originally aired January 18, 1990 on NBC.
 In this episode, Cliff Clavin (John Ratzenberger) appears on the game show "Jeopardy!" and game show host Alex Trebek guest stars as himself.
 Cliff racks up US$ during the game but loses it all in the final round, and he unsuccessfully demands that his answer be accepted.
 Back at Cheers, Trebek encounters Cliff and announces his resignation from the game show, prompting Cliff to reconsider.
 Unbeknownst to Cliff, Trebek did that mainly to avoid him.
 Meanwhile, Sam retrieves his address book from a teenage boy Timmy, who repeatedly calls Sam's past dates, and ironically encourages Timmy to stick to girls around his age.
 The episode received praise from critics for its concept and its guest star.
Jep!
 is an American children's television game show, adapted from the quiz show "Jeopardy!".
 It aired first on Game Show Network (now known by its abbreviated name, "GSN") throughout the 1998–99 season, and then on Discovery Kids through late 2004.
 It was hosted by cartoon voice actor Bob Bergen, and created by Scott Sternberg who had earlier created "Wheel 2000", a children's version of "Wheel of Fortune".
 The show's production involved many of the daily syndicated "Jeopardy!"'s then-current personnel, including director Kevin McCarthy and four of the nine writers that the show employed at the time, and Alex Trebek, the main "Jeopardy!" series' host, served as "Jep!"
's creative consultant.
 Unlike the main "Jeopardy!" series, "Jep!"
 was taped at Stage 11 of the Sony Pictures Studios, rather than Stage 10.
"I Lost on Jeopardy" is a song by "Weird Al" Yankovic from his second album, ""Weird Al" Yankovic in 3-D".
 The song is a parody of "Jeopardy" by The Greg Kihn Band, and its refrain "Our love's in jeopardy".
 The parody's lyrics center on the then-former game show "Jeopardy!", hosted by Art Fleming; a syndicated revival, with Alex Trebek, began three months after the single's release.
Headline Chasers is a syndicated game show that ran daily from September 9, 1985 to September 5, 1986.
 The series was hosted by Wink Martindale, with Johnny Gilbert serving as announcer.
 Martindale, who left "Tic-Tac-Dough" and was replaced by Jim Caldwell to take the position on "Headline Chasers", also created the series and was its executive producer.
 The show was a co-production of Wink Martindale Enterprises and Merv Griffin Enterprises with King World Productions, Griffin's partner for his other syndicated game show offerings, as distributor.
 "Headline Chasers" was recorded at TAV Celebrity Theater in Hollywood, the same studio which housed "The Merv Griffin Show" (which, at the time "Headline Chasers" premiered, was still in production).
Double Dare is an American television game show, produced by Mark Goodson—Bill Todman Productions, that ran from 1976 to 1977 on CBS.
 Alex Trebek was the host, with Johnny Olson and later Gene Wood announcing.
 The show was created by Jay Wolpert.
Pitfall is a Canadian game show that aired in American and Canadian syndication from September 14, 1981 to September 1982.
 The host was Alex Trebek and the announcer was John Barton (who also served as co-producer).
 The show was filmed at Panorama Studios in Vancouver, British Columbia and produced by Catalena Productions, with distribution provided by Rhodes Productions.
The Wizard of Odds is an American game show hosted by Alex Trebek that aired on NBC from July 16, 1973 to June 28, 1974 in which people from the studio audience vied in a number of rounds, primarily games revolving around statistical questions.
 Sam Riddle was the show's first announcer; toward the end of the run, Charlie O'Donnell replaced him.
The "Jeopardy!" Battle of the Decades was a special 5-week tournament airing throughout the 30th season of the television game show "Jeopardy!" to commemorate the 30th anniversary of the daily syndicated version of the show, hosted by Alex Trebek.
 The tournament involved 45 previously successful "Jeopardy!" contestants split into three groups based on the time period of their initial appearance on the program.
 Though the groups roughly represented 1984-1993, 1994–2003, and 2004–2013, they were referred to as the 1980s, 1990s, and 2000s, respectively.
 The tournament's 1980s round began airing on February 3, 2014 with the tournament's final episode airing that year on May 16, covering 25 shows in total.
 The tournament's grand prize was US$1,000,000.
 Brad Rutter won the $1,000,000 cash prize, once again giving Rutter the highest game-show winnings in history.
George Alexander "Alex" Trebek {'1': ", '2': ", '3': ", '4': "} ( ; born July 22, 1940) is a Canadian-American television personality.
 He has been the host of the syndicated game show "Jeopardy!" since it began airing in syndication in 1984, and has also hosted a number of other game shows, including "The Wizard of Odds", "Double Dare", "High Rollers", "Battlestars", "Classic Concentration" and "To Tell the Truth".
 Trebek has made appearances in numerous television series, usually portraying himself.
 A native of Canada, he became a naturalized United States citizen in 1998.
Celebrity Name Game is an American syndicated game show which premiered on September 22, 2014.
 Based on the board game "Identity Crisis" (created by Laura Robinson and Richard Gerrits), the series was developed by Courteney Cox and David Arquette's Coquette Productions, and was originally pitched as a primetime series for CBS with Craig Ferguson as host.
 The series was later picked up by FremantleMedia and Debmar-Mercury as a syndicated series for 2014 with Ferguson, who left "The Late Late Show" on December 19, 2014, remaining as host.
 The series marks Coquette's first foray into game shows.
 The show was subsequently renewed for a second season, which premiered on September 21, 2015.