There was this old Nickelodeon commercial where this girl and I guess her brother had like a "show" which looked like it was a puppet show, only I dont remember puppets o_o. anyway, I remember the girl saying something like "see ren and stimpy on nickelodeon" or something like that....I dont know if this makes any sense but...yeah...they talked about different shows too I think...

I know exactly what your talking about. it was about this girl and her big sister and the younger sister was talking to her big sister saying stuff about shows on nickelodeon that she considered great, and she made up this show in her head and she said this is The Sten and Rimpy Show, and then her big sister said don't you mean The Ren and Stimpy Show and she said No that is another great show on nick this is The Sten and Rimpy Show YAY! :D

You can see them briefly 25 seconds into this commercial:

http://www.retrojunk.com/details_commercial/726/