Jack Albertson (“The Subject Was Roses”) heads...

Jack Albertson (“The Subject Was Roses”) heads up America 2Night’s telethon for olefactor dytosis (Tuesday at 4 a.m. on Nickelodeon).

Vincent Price plays a mad KAOS pharmacist on Get Smart (Thursday at 9 p.m. on Nickelodeon).

“Family Feud” host Richard Dawson plays himself on The Odd Couple (Friday at 6 p.m. on KDOC) in an episode in which he chooses Oscar to be his co-host for a week on a talk show.

Evil Twin Sitcom Zone (Friday from 8 p.m. to midnight on Nickelodeon) features double- image episodes of several series: Siegfried clones CONTROL agents on “Get Smart,” a mirror image drives a man mad on “Alfred Hitchcock Presents,” a double of Oliver spells trouble on “Green Acres,” Endora creates twin Darrins on “Bewitched” and Patty and Cathy have everyone seeing double on “The Patty Duke Show.”