Michael Callan plays Rhoda’s strange new boyfriend...

Michael Callan plays Rhoda’s strange new boyfriend who wants to become a forest ranger on The Mary Tyler Moore Show (Sunday at 11 p.m. on Nickelodeon).

The Ricardos and the Mertzes attend a ballgame at Yankee Stadium, where they meet Bob Hope on an I Love Lucy (Tuesday at 3:05 a.m on TBS) that originally aired Oct. 1, 1956.

Stefanie Powers plays a thief who fools Rockford into investigating a phony suicide case on The Rockford Files (Tuesday at 3 p.m. and Wednesday at 10 a.m. on A&E;).

Lucy becomes Orson Welles’ magician’s assistant on I Love Lucy (Wednesday at 3:05 a.m. on TBS).

Virginia Madsen guests as Maddie’s beautiful cousin Annie who develops the hots for David on Moonlighting (Wednesday at noon on Lifetime).

TNT airs “Tyger, Tyger,” a two-part Dr. Kildare (Thursday at 12:30 a.m.).

Mary enrolls in a journalism class and dates her handsome instructor (Michael Tolan) on The Mary Tyler Moore Show (Thursday at 10:30 p.m. on Nickelodeon).

Nancy Walker returns as Rhoda’s mother, Ida, who hopes to bridge the generation gap by becoming Rhoda’s pal on The Mary Tyler Moore Show (Friday at 10 p.m. on Nickelodeon).

Jack Cassidy guests as Ted Baxter’s brother Hal on The Mary Tyler Moore Show (Fridays at 10:30 p.m. on Nickelodeon).

A pre-”China Beach” Dana Delany plays David’s ex-girlfriend who may have murder on her mind on Moonlighting (Saturday at 11 a.m. on Lifetime).