Onnik Dinkjian (Armenian: Oննիկ Տինքճեան , born 1929) is a French born American-Armenian musician and singer.
 He is father of Ara Dinkjian, and has appeared with his son as well as other Armenian musicians such as Roupen Altiparmakian playing oud.
Matt Vasgersian was a regular announcer.
 Dick Stockton and Josh Lewin were also regular fill in announcers.
 Leo Mazzone was as a fill in color commentator.
Night Ark is an instrumental jazz quartet formed in 1986.
 The members are American-Armenian Ara Dinkjian, Turkish Armenian Arto Tunçboyacıyan, American-Armenian Armen Donelian and American Marc Johnson.
 The quartet's most famous piece is "Homecoming"; a famous version thereof set to lyrics in Greek is "Dynata", first sung by Eleftheria Arvanitaki.
 Homecoming was also the theme for the successful satirical Israeli television series 'HaHamishiya HaKamerit' ("The Chamber Quintet").
Matthew Edward "Matt" Vasgersian (born September 28, 1967) is an American sportscaster and television host.
 Vasgersian is currently a play-by-play announcer for Fox Sports' coverage of Major League Baseball, as well as a studio host for the MLB Network.
 In the past he has served as an announcer for Fox Sports' National Football League coverage, NBC Sports' coverage of the Olympic Games, and NBC Sports' coverage of the short lived XFL.
 He formerly called play-by-play for the Milwaukee Brewers and the San Diego Padres.
Baseball IQ is an American television game show airing on the cable channel MLB Network.
 The show debuted on January 24, 2012 and its first season is scheduled to end on February 23, 2012 with the season championship.
 The show is hosted by MLB Network anchor Matt Vasgersian.
 The show's focus is baseball trivia.
Eleftheria Arvanitaki (Greek: Ελευθερία Αρβανιτάκη) (born October 17, 1957 in Piraeus) is a Greek folk singer.
 She originates from the island of Icaria.
 Arvanitaki has worked with important musicians, such as Cesária Évora, Arto Tunçboyacıyan, Ara Dinkjian.
 On 14 March 2010, Alpha TV ranked her the sixth top-certified female artist in the nation's phonographic era (since 1960).
Dinata or Dynata is a song from the album "Meno Ektos"; its music was composed by Ara Dinkjian, its lyrics written by Lina Nikolakopoulou and it was first sung by Eleftheria Arvanitaki while Arto Tuncboyaciyan features in non verbal singing and percussion in some versions and performances of it; it mixes the influence of Balkan, Greek and Armenian music with electronics.
 This song, among the others on "Meno Ektos", made Arvanitaki a big name in Greece; a notable performance of it by her was at the closing ceremony of the 2004 Athens Olympics, during the fireworks and after the flame had been extinguished.
Meno Ektos (English title: I Still Remain An Outcast; Greek: Μένω Εκτός) is an album by popular Greek artist Eleftheria Arvanitaki.
 It was released in 1991 and it is her fourth personal album.
 It went gold in Greece, selling over 50,000 copies; it spawned "Dinata" (Greek: Δυνατά), one of her signature songs.
 The lyrics of the album's songs, except "Σαν Δεύτερη Φωνή" (English title: "Like a backing voice") and "Κύμα το κύμα" (English title: "Wave after wave") who have been written by Thodoris Gonis and Yiorgos Zikas respectively, have been written by one of the most famous and significant women lyricists in Greece, Lina Nikolakopoulou; the music composers are Ara Dinkjian, Antonis Mitzelos, Christos Nikolopoulos, Zoran Simganovic, George Zikas and Nikos Xydakis.
Ara Dinkjian (Armenian: Արա Տինքճեան ; born 1958) is an Armenian-American musician.
 He is the founder of the band Night Ark.
 Dinkjian is considered one of the top oud players in the world, his compositions have been recorded in thirteen different languages, which include the multi-platinum hit "Dinata", it was performed in the closing ceremonies of the 2004 Olympic Games in Athens.
Max Rubin is a gambling expert and author best known for his book "Comp City: A Guide to Free Gambling Vacations".
 The book teaches players how to maximize casino perks with little actual wagering.
 Rubin is also a gambling analyst for television.
 He served as commentator for the first two seasons of the GSN "World Series of Blackjack" along with Matt Vasgersian and co-hosts the "Ultimate Blackjack Tour" with Nick GAS' Mati Moralejo on CBS.
 Rubin is a member of the Blackjack Hall of Fame and hosts the annual Blackjack Ball.

Question: What nationality do Ara Dinkjian and Matt Vasgersian have in common?
Answer: American