I'm a HUGE fan of the 70's show. The tellamovies with the extra scenes are great (not to be confused with the movies edited for outside the USA theater release), I love the "Experiment in Terra" one, that did a major re-edit of the "Return of Starbuck" episode from "Galactica 1980" and also had newly made footage (yet cheesy) of an astronaut finding the logbook of the Galactica floating in space. Also it had newly recorded dialog recorded by Lorne Greene that tells the viewers the history of the Cylon's and the war. I have also collected all the newly released limited edition soundtracks that came out over the last two years for the original 70's show.
Edit:
WOW! I just found the videos I had uploaded on this years and years ago.
Take a look.
The "Experiment in Terra" telemovie is the only Battlestar Galactica telemovie which actually features new footage. Back in the 1980's, MCA's T.V. distribution took episodes of Battlestar Galatica and made a number of feature length "Telemovies" by (In most cases) re-editing two episodes of the 1978/79 series into one story. These "Telemovies" had been sold around the world for broadcast as stand alone programing. A number of the newly created edits did contain footage that was not part of the original episode versions. But of all the "Telemovie" edits, only one had newly created footage inserted into it, and it's also the only "Telemovie" to use an episode of the original series combined with an episode of Galactica 1980 ("The Return of Starbuck")! FF