I bought a 35" Superscan TV that did not come with a universal remote.
So I bought an RCA universal remote that has codes for nearly every
brand I have ever heard of, except Superscan. I ended up getting
another universal remote for my cable box from comcast and it also has
no codes for superscan. Can anyone find a code for either my RCA or
comcast remote that will control my superscan tv?

This page may be helpful:

http://www.thompsontv.com/rcarc.html

I suggest trying codes for Funai and Sylvania. If those fail, use
"Code Search." It's time-consuming, but if there's a code in there
that will work, it should find it.

Also, give samsung and daewoo a shot.  Research that I have found has
the consensus thinking that Superscan is a Sylvania (which popular
belief is actually build by Daewoo) built product.

-THV