The closest thing I can think of that is, for some reason, when Comedy Central used to air "I, Roommate" (which is only the SD opening, of course) they used to remove the "As Seen on TV" caption from it for whatever reason. But, now that they run the standard syndication version I'm not sure if that would still apply.
The only other option I can think of would be to find a version where the caption isn't too intrusive and just paste over it. If you put it on a black box or something (I think some of the actual captions do stuff like that), it may not be noticeable.
My season 1 DVD has it without a caption. I had no idea there was even one originally.