Besides Networks slicing out more program for the commercials
having seen all Peanuts specials in the their first run, the contemporary ads are absolutely jarring in contrast with the vintage Peanuts specials.
We have all the specials on laserdiscs and those are unedited and complete, DVDs seem to be uncut also. On CD we have the music that Vince produced for Peanuts even stuff from the 70s right before he passed away, those are great to listen to.
So yeah, I dont miss watching them on old Broadcast tv at all.
Heres a real interesting comparison of the original release and the edits meant to improve the special.