EVER think that bad taste can leave a good taste in your mouth?

Tomorrow night, NBC has put together a two-hour comedy block of sitcoms that are so funny they might even remind you of the good old days – you know, before cable was your first choice for over-the-edge entertainment.

Now, while they are all exceptionally good new episodes of “My Name Is Earl,” “Scrubs” and “30 Rock,” “The Office” is the one that actually comes close to “Borat”-funny.

In other words, it’s throw-your-back-out-funny in that hugely embarrassing, please-don’t-go-there sort of way.

And there’s good reason. The episode was written by Ricky Gervais and Stephen Merchant, long-time collaborators, who created “The Office” in the U.K. before allowing their baby to go away to school on this side of the Atlantic.

Gervais, who now stars in “Extras,” also played the boss role in the U.K. version of “The Office” – the same sort of clueless, inappropriate company man and manager that Steve Carell plays here.

Tomorrow night’s show begins when Michael (Carell) learns from the higher-ups at HR (help me! I’m turning as corporate as the employees at Dunder-Mifflin) that one of the new guys from the merged office is, yes, an ex-convict.

Seems the company got some kind of government tax credit for hiring an ex-con. But who is it?

Wait! Could it be the new black guy? Oh, not!

Why can’t it be a white guy? No one would think they were racist for guessing that the white guy’s the ex-con. But, yes, the black guy (Wayne Wilderson, who is hilarious in the role) is the con!

Michael reminds everyone that just because he’s black doesn’t mean he has to have a prison record, nor does it mean he had a “bitch” in the slammer.

It’s so bad, so tasteless, so embarrassing, so hysterical that you seriously should consider firing up the TiVo – this is one you’ll want to see several more times.

The second funniest show tomorrow night is “Earl,” which is equally tasteless and out of line.

For starters, Kenny’s (Gregg Binkley) boyfriend has broken up with him and he wails: ” ‘Brokeback Mountain’ totally ruined gay life!” Now, he says, gay men want rugged cowboy types.

It becomes Earl’s (Jason Lee) job to teach Kenny to be a manly man. Or in Earl’s words: “You want me to teach

you to be less gay so you can sleep with more men?”

Instead he turns Kenny into a gambling addict.

Some of the lines in this episode are the funniest of the whole run of the show so far . . . and that’s pretty danged funny.

In a manly sort of way, of course.

It’s a truly tasteless and hilarious comedy block, making it a great night to stay in, tune in and laugh your class off.