Moving from Fridays to Thursdays for its fifth and final season, The Odd Couple opens the proceedings with "The Rain in Spain," featuring a surprise appearance by All in the Family's Rob Reiner as the boyfriend of Myrna Turner (played by Reiner's then-wife Penny Marshall), the secretary of sportswriter--and confirmed slob--Oscar Madison (Jack Klugman). Thereafter, it's business as usual, with Oscar getting on the nerves of his neatnik roommate Felix Ungar (Tony Randall), and vice versa, yet remaining best friends all the same. The celebrity guest stars continue to parade past the series' cameras during Season Five, beginning with Bob Hope in "The Hollywood Story." Gossip columnist Rona Barrett is seen in "The Dog Story," newscaster Howard K. Smith in "The Odd Candidate," Richard Dawson in "Laugh Clown Laugh," and, in a true "hit the jackpot" situation, sportscaster Howard Cosell, ABC executive Roone Arledge and Metropolitan Opera soprano Martina Arroyo in "Your Mother Wears Army Boots." Interestingly, while singer-composer Paul Williams plays "himself" in "The Paul Williams Show," country star Roy Clark is seen as "Willie Boggs" in "The Roy Clark Show" (though he still gets to play guitar). Episodes of special interest include "The Frog," in which Leif Garrett takes over from Willie Aames in the role of Felix's son Leonard; and "Our Fathers," a flashback to the 1920s wherein Felix and Oscar are "cast" as their own fathers. And let's not forget the series finale "Felix Remarries," with Felix and his ex-wife Gloria (Janis Hansen) reunited even while Oscar (Jack Klugman) joyously celebrates his "liberation" from Felix' fastidiousness!