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.