The Mary Tyler Moore Show (1970)

Season 2: Episode 6

Jack Cassidy guest stars as professional model Hal Baxter, who comes to visit his brother Ted at WJM-TV. Immediately, the two engage in a heated battle of sibling rivalry about EVERYTHING -- salaries, cars, & even women. In an effort to size up his brother, Ted claims that Mary is his girlfriend. Ted & Hal decide to go on a double-date with Mary & Rhoda. At the restaurant, Ted doesn't know any etiquitte, and it shows. Back at Mary's apartment, Ted & Hal arm wrestle before Hal decides to go with Rhoda up to her apartment to look thru magazines for his picture. Ted stays with Mary to make Hal think that he spends more time with his girl than he does.