Christopher Walken appears in a 20-year-old “Hawaii...

Christopher Walken appears in a 20-year-old “Hawaii Five-O’ episode (Sunday at 9 p.m. on KCOP). That first airing was eight years before Walken’s Oscar-winning performance in “The Deer Hunter.”

Cruella De Vil, Captain Hook and Snow White’s evil stepmother are paid tribute as “Disney’s Greatest Villains,” on “The Wonderful World of Disney” (Saturday at 6 p.m. on KTTV).

A pre-Meathead Rob Reiner plays Mitch in two episodes of “The Beverly Hillbillies” (Monday and Tuesday at 11 a.m. on KDOC), when the Clampetts go back to the hills to find Elly May a husband.

Supermoms Harriet Nelson and Jane Wyatt give Marion some motherly advice on “Happy Days” (Saturday at 9 a.m. on KTLA).

Broderick Crawford, who was once a lawman on “Highway Patrol,” finds himself flagged down to get a speeding ticket on “CHiPs” (Wednesday at 2 p.m. on KTLA).

Johnny Carson is heard but not seen at Mary’s big party on “The Mary Tyler Moore Show” (Saturday at 9 p.m. on KDOC).

Rat Packers Sammy Davis Jr. and Peter Lawford guest star on “The Patty Duke Show” (Wednesday at 11:30 p.m. on Nickelodeon). Sammy offers to entertain at Patty’s prom.

Cloris Leachman convinces Donna that dying her hair will spice up her marriage on “The Donna Reed Show” (Monday at 9:30 on Nickelodeon).

Gomer Pyle (Jim Nabors) decides to join the Marines on “The Andy Griffith Show” (Tuesday at 5:30 a.m. on KTTV), which spun off into his own show.

Margaret gets engaged to Donald Penobscott on “M*A*S*H” (Thursday at 7 p.m. on KTTV) then marries him (Friday at 7 p.m. on KTTV), signaling the end of Frank Burns in the series.