I am not a video guy... so this is beyond my abilities. But, why not take a fairly short, high quality clip of Ron Paul talking about an important subject... say the economy. Then edit the video so all modifiers he uses are *bleeped*. That could be submitted to Maher's show to make him feel more comfortable with Ron not cursing... give the feel... without any compromise. Provide the original clip so they can show what he actually said.
Something like this... original:
"Economically the consequences will be that there's going to be a wholesale rejection of the dollar... and therefore we can print the money and we can spend the money and foreign countries take our money, then loan it back to us, so they're getting a bum rap."
Changed to this:
"Economically the *BLEEP* will be that there's going to be a wholesale *BLEEP* of the dollar... and therefore we can *BLEEP* the money and we can *BLEEP* the money and foreign countries take our *BLEEP*, then loan it back to us, so they're getting a *BLEEEEEPPP*."
It might be amusing enough for them to air.