If you're tired of seeing the same words pop up in TV show titles, you're not alone. Do the networks really expect us to remember the difference between The Road Home (CBS, Saturdays, 9-10 p.m.) and Winnetka Road (NBC, Saturdays, 10-11 p.m.)? Especially when both star St. Elsewhere alums (Home's Terence Knox and Ed Flanders, Winnetka's Ed Begley Jr.)? Maybe they should just combine these similar-sounding series: *PrimeTime Live and Live With Regis & Kathie Lee become...PrimeTime Live with Regis & Kathie Lee The early birds stay up late to give split-screen sourpusses Sam Donaldson and Diane Sawyer a lesson in face-to-face chemistry.

*Diagnosis Murder and Murder, She Wrote become...Diagnosis Murder, She Wrote Dick Van Dyke and Angela Lansbury play a pair of sprightly sleuths who track down killers together-and discover the joys of sex after 65.

, *In the Heat of the Night and Acapulco H.E.A.T. bethe Acapulco H.E.A.T. of the Night Sheriff Gillespie (Carroll O'Connor) relocates to a Mexican beachfront resort owned by a long-haired billionaire (Fabio) and oversees a team of bikini-clad secret agents.

*Boy Meets World and Dave's World become...Boy Meets Dave's World Humor columnist Dave Barry (Harry Anderson) discovers life isn't quite as funny as he thought it was, when he adopts an annoyingly precocious 12-year-old (Ben Savage).

*Thunder Alley, Thunder in Paradise, and The Byrds of Paradise become... Thunderbyrds in Paradise Alley A former Navy SEAL (Terry ''Hulk'' Hogan) recruits a most unlikely duo-the mild-mannered headmaster of a Hawaiian school (Timothy Busfield) and an ornery retired race-car driver (Ed Asner)-to help man his crime-busting powerboat. -Bruce Fretts


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