Sad but true installment of 'Rehab'

THE SHOW "Celebrity Rehab With Dr. Drew Pinsky"

WHEN | WHERE Sunday at 9 p.m. on VH1

REASON TO WATCH Can I get back to you on that?

WHAT IT'S ABOUT The fifth season begins, as Michael Lohan (needs no introduction) and Amy Fisher (also none needed) converge on the Pasadena Treatment Center where Dr. Drew Pinsky and colleagues will try to exorcise their well-chronicled demons. Also this season: Sean Young ("Blade Runner"); Bai Ling ("The Crow"); Steven Adler, a former Guns N' Roses drummer; and Jeremy Jackson ("Baywatch") arrive Sunday. The most famous celebrity rehab case, Dwight Gooden, appears later in the season, but glimpses of a puffy, overweight former superstar are offered.

Lohan tells Pinsky, "How sick is it that I still have my coke dealer's phone number in my phone. I know for me it's gonna lead to a really bad place." Says Fisher, "I do make adult films [but] again, I'm just a girl trying to survive. When I don't drink, I can't do it. . . . "

MY SAY Amy Fisher and Michael Lohan on the same reality show? What have we done to deserve this? Fill out this lineup with Jeremy Jackson -- long ago the Hoff's son on "Baywatch" and currently someone who, by his own admission, consumes more steroids than the National and American leagues combined -- and Adler, who's actually doing his second "Celeb Rehab" tour, and what else could you possibly need?

Obviously, a long shower afterward. This isn't a sad spectacle -- but a tawdry one.

BOTTOM LINE Run, don't walk, from this show.

GRADE D-