I recently found this online in DVD format, and transferred it to .avi just for you. Here is Pink Floyd's very first television appearance, recorded on May 14, 1967 for the Look of the Week program. Evidently, they also did Pow R Toc H and an interview but this was captured during a re-broadcast and those two parts didn't make the cut. The transfer seems to have heightened the contrast in the picture a little - I'll have to work on that for future posts.
This is the original Pink Floyd with Syd Barrett on guitar and vocals. They play the song much like they later would on the Piper at the Gates of Dawn album. This means it's a little mellower and trippier than it would become with David Gilmour ripping into the solo the way he did.