David Niven plays writer Robert Louis Stevenson...

David Niven plays writer Robert Louis Stevenson in “Tusitala,� a Four Star Playhouse (Sunday at 10 p.m. on KOCE) drama from the 1950s.

Mr. “Naked Gun� himself, Leslie Nielsen, guests on Alfred Hitchcock Presents (Sunday at 10 p.m. on Nickelodeon) in a mystery about an attorney who agrees to take $2 million to get a man acquitted of a murder. Oscar-winner Louise Fletcher (“One Flew Over the Cuckoo’s Nest�) also is featured.

USA welcomes to its lineup the hit ’70 comedy series Welcome Back, Kotter (Monday-Friday at 5:30 p.m.). Gabe Kaplan stars as a teacher who lands his first job at his old Brooklyn high school,teaching the remedial misfits known as “The Sweathogs.� The series made John Travolta a star.

Before he was patriarch of the Ponderosa, Lorne Greene appeared on an Alfred Hitchcock Presents (Monday at 10 p.m. on Nickelodeon) in a thriller about a man who is asked to kill his employer’s wife’s first husband.

Stewart Granger (“King Solomon’s Mines�) plays a old flame of Victoria Cabot’s (Anne Baxter) who arrives at the St. Francis on Hotel (Monday at midnight on Lifetime).

A pre-Spock Leonard Nimoy guests on Get Smart (Wednesday at 9 p.m. on Nickelodeon) in an episode in which Smart believes a pool parlor may actually be a KAOS front.

Paul Sorvino (“GoodFellas�), who just signed to star in the NBC series “Law & Order,� guests as David’s father on Moonlighting (Thursday at 2 p.m. on Lifetime).

The Best of the Tracey Ullman Show (Friday at 11 p.m. on Lifetime) features six sketches from Ullman’s Emmy-winning comedy series.

Joining the Family Channel weekend Western block is the 1960s series Lancer (Saturday at 3 p.m.), starring Andrew Duggan, James Stacy and Wayne Maunder.

Fans of Nat “King� Cole set your VCRs: KOCE is presenting 25 “lost� episodes of the singer’s unforgettable 1956-57 NBC musical-variety series (Saturday at 9 p.m.). Frankie Laine (“Mule Train,� “High Noon�) is the guest.