MCA/Universal Home Video has just released two...

MCA/Universal Home Video has just released two more vintage Ma & Pa Kettle comedies on video: Ma and Pa Kettle on Vacation (1953), which finds Ma (Marjorie Main) and Pa (Percy Kilbride) on a tour of France, and Ma and Pa Kettle at Home (1954), in which the clan try to spruce up their farm. The videos are available for $15 each.

Very Very Nick at Nite (Sunday at 9 p.m. on Nickelodeon) presents “Very Very Lucy & Ricky,” featuring four episodes of “I Love Lucy.”

The past and future collide in the 1990 TV special The Jetsons Meet the Flintstones (Monday at 5:05 a.m. on TBS).

Martin Balsam, Kim Hunter and Jack Carter guest on Police Story (Monday at 3 p.m. on A&E;) in an episode in which a cop accidentally kills another officer.

Serenity Johnson, Caine’s blind friend, pays his last visit on Kung Fu (Tuesday at 10 a.m. on TNT). Johnson was played by John Carradine, series star David Carradine’s father.

Comedian Foster Brooks guests on Bewitched (Tuesday at 8:30 p.m. on Nickelodeon) in an episode in which Samantha falls under a spell that makes her disappear.

Leslie Nielsen guests on Kung Fu (Wednesday at 10 a.m. on TNT) in an episode in which Caine searches for his half-brother.

Eric Sevareid, Herve Villechaize and Lassie drop by Taxi (Wednesday at 10 and 10:30 p.m on Nickelodeon) in a two-part episode in which the cabbies reveal their fantasies.

Darren McGavin and Pat Carroll appear on a Police Story (Friday at 3 p.m. on A&E;) about two officers who trail a killer of gay men.

Blair Brown guests on The Rockford Files (Friday at 4 p.m. on A&E;) in an episode in which Jim poses as a newspaper publisher for a mysterious client.