Mr. Warmth himself, Don Rickles, guests on...

Mr. Warmth himself, Don Rickles, guests on The Andy Griffith Show (Monday at 3:35 p.m. on TBS) as Newton Monroe, a peddler who can’t do anything right.

A pre-”Dallas” Charlene Tilton guests on Happy Days (Tuesday at 4:05 p.m. on TBS) as Joanie’s archrival Jill.

Jim Backus’ wife, Henny, drops by Gilligan’s Island (Wednesday at 5:05 a.m. on TBS) as the meddling mother of a native family who comes from a neighboring island seeking a husband for her rather homely daughter and decides little buddy Gilligan would make a great son-in-law.

The last Moonlighting (late Wednesday at midnight on Lifetime) finds Agnes and Burt deciding to tie the knot, and Maddie and David forced, yet again, to take a close look at their own relationship. This disappointing finale aired with a whimper not a bang-it was opposite the No. 1 ranked conclusion of “Family Ties.”

KTLA presents its 11th Twilight Zone Marathon (Thursday beginning at 9 a.m. on KTLA) featuring 26 classic episodes of the Rod Serling series over 13 consecutive hours. This year’s marathon includes “The Brain Center at Whipples” with Paul Newman (9 a.m.), “The Dummy” with Cliff Robertson (8 p.m.), “Living Doll,” starring Telly Savalas (8:30 p.m.) and “The Night of the Meek,” with Art Carney (9:30 p.m.).