Ali G is made by Sacha Baron Cohen (the same guy who made Borat, Bruno and The Dictator) and features all 3 of his characters, Alistar (Ali G) who is a white male who acts like the stereotypical wigger in every way possible and also originates from England. Then there is Borat, a seemingly clueless man of American culture who is from Kazakhstan and who the majority of you have probably seen the movie of. And finally there is Bruno who acts and fits into every single stereotype of gays possible and is supposedly from Austria.
It's a pretty old show by todays standards, it was around in 2002 but its still incredibly funny. He interviews Newt Gingrich and Buzz Aldrin, which is beyond hilarious, and his religion piece is one of the best. Also Bruno cheerleading in Alabama.
If you liked Borat or Bruno then you will love these (obviously because they have the same characters), but even if you didn't watch Borat or Bruno you will still love this show. Sorry for you small chillin out there as it is obviously rated R for a reason. Mostly just foul language though, although there is one scene where he is doing a girl against a tree.
tl;dr same guy who made Borat really funny would recommend hot redheads getting forgeted.
