Esther Williams is in the swim when...

Esther Williams is in the swim when she guests on “The Donna Reed Show” (Monday at 1:30 a.m. on Nickelodeon).

George Reeves swoops down to make a guest appearance as Superman on “I Love Lucy” (Monday at 3:05 a.m. on TBS).

William Demarest of “My Three Sons” fame is featured on an “Alfred Hitchcock Presents” (Monday at 10:30 p.m. on Nickelodeon) episode about two elderly men who refuse to let the town take care of them.

The Monroe Brothers Week (Monday-Friday at 11:30 p.m. on Nickelodeon) highlights episodes of “Green Acres” featuring the inept sister and brother carpenter team, Ralph and Alf (Mary Grace Canfield and Sid Melton).

The very first episode of “Jeff’s Collie” (Wednesday at 2:30 p.m. on Nickelodeon) finds Jeff trying to win over Lassie and capturing a thief at the same time.

Hugh Marlowe (“Come to the Stable,” “All About Eve”) plays a record producer who gets more than he bargained for when he tapes some of the local Mayberry musicians on “The Andy Griffith Show” (Thursday at 3:35 p.m. on TBS).

The premiere episode of “Get Smart” (Thursday at 9 p.m on Nickelodeon) finds Smart and 99 trying to stop Mr. Big from threatening to destroy the country’s major cities with Prof. Dante’s Inthermo.

The infamous Mae West invites Ed to come up and see her some time on “Mr. Ed” (Friday at 5 a.m. on Nickelodeon).

The beautiful Lily O’Reilly (Lee Meriwether) opens a saloon in Fort Courage on “F Troop” (Saturday at 11:30 a.m. on Nickelodeon).

Crooner Tony Bennett guests on a vintage episode of “The Nat King Cole Show” (Saturday at 9 p.m. on KOCE).

Leslie Howard’s son, Ronald, stars as the legendary sleuth Sherlock Holmes in the ‘50s TV series “The Casebook of Sherlock Holmes” (Saturday at 10 p.m. on KOCE).

King Kong’s favorite leading lady, Fay Wray, and Alan Alda’s father, Robert, guest on “Alfred Hitchcock Presents” (Saturday at 11:30 p.m. on Nickelodeon) in an episode in which a mother is concerned her daughter is seeing a married man, so she tells his wife.

Lifetime repeats the award-winning “Venus Butterfly” episode from the first season of “L.A. Law” (Saturday at midnight).