That's actually not a bad idea. I think if Disney or Henson found out fans were dubbing Muppet TV into English, maybe then they'd realise just how much The Muppets mean to us, well the Hensons most likley, I bet Disney would laugh at us
I mean it's something very tricky to do and I'd be willing to help out as much as I could though I'd have no idea how to go about it. Maybe if we manage to translate it we could have diffrent members of MC voice a character in English, we could try and get the person who sounds most accurate to the actual Muppet and there weren't those many Muppets on it anyway (What were there like 9?) Not to mention that those good at voicing a particular Muppet would get to shine and show off what they could do (I'm not very good at this either, though I can do Swedish Chef but I bet most people can too)
So if we get an english translation of what they say and then have a few members of MC voice act it out whilst watching the show at the same time maybe then we could add our recording along with the Muppet TV episode and pretend as much as we can that we're watching a new english Muppet Show.
I don't know much about these things and wouldn't know how to go about it by myself but It could be done somehow I imagine. Maybe we could do this after all?