Was there a 1970's kids' TV show with two mice who are in a hot air balloon?

Yes, there was! I remember it too and it was one of my favorite shows as a kid! The mice were named Nick and Pick and they went up in a hot air balloon and wherever they came down they would have an adventure. It was the coolest show to me at the time. It's nice to find someone else who even remembers it. It would be great to find an old clip of the show.

And the theme song went like this, "Nik Pik, Nik Pik flying high across the sky. Nik Pik...across the sky."