Relive how The Mary Tyler Moore Show...

Relive how The Mary Tyler Moore Show (Sunday at 10 p.m. on Nickelodeon) started when Nick at Nite airs the very first episode.

Fonzie falls in love with the sexy motorcycle queen Pinky Tuscadero (Roz Kelly) on a three-part Happy Days (Monday-Wednesday at 6:05 a.m. on TBS).

Robert Culp and Valerie Harper guest star on Columbo (Monday at 12:30 p.m. on A&E;) in a thriller in which the detective investigates the murder of a pro football team owner.

TBS repeats the pilot episode of the long-running ABC comedy series Growing Pains (Monday at 3:35 p.m. on TBS).

Marty Ingels guest stars on The Dick Van Dyke Show (Monday at 11 p.m. on Nickelodeon).

Darren McGavin and George Maharis are featured in the 1973 “Cop Killer” episode of Shaft (Tuesday at 12:30 a.m. on TNT); Richard Roundtree stars.

The great Nancy Walker makes her first appearance as Rhoda’s meddling mom on The Mary Tyler Moore Show (Tuesday at 10:30 p.m. on Nickelodeon).

Ed Asner plays a 30-year-old veteran who risks his life on the day of his retirement on Police Story (Wednesday at 3 p.m. on A&E;).

Georgia Engel of “The Mary Tyler Moore Show” plays a meter maid who falls in love with Exidor on a two-part Mork & Mindy (Tuesday and Wednesday at 8:30 p.m. on Nickelodeon).

A young Meredith Baxter appears on The Partridge Family (Thursday at 8 p.m. on Nickelodeon) in an episode in which Chris and Tracy run away.

Tom Poston guest stars as Bob’s friend, a.k.a. the Peeper, who returns to Chicago for a visit on The Bob Newhart Show (Thursday at 9:30 p.m. on Nickelodeon).

Dick Van Dyke’s sons, Barry (now appearing with his dad on “Diagnosis Murder”) and Christian, are featured on The Dick Van Dyke Show (Friday at 11 p.m. on Nickelodeon).

Very Very Nick at Nite (Saturday at 10 p.m. on Nickelodeon) presents “Very Very Derby”-- episodes of “The Partridge Family,” “The Lucy Show,” “Alfred Hitchcock Presents” and “Superman” that deal with racehorses.