Doctor Who: The Five Doctors

Yes, "The Five Doctors" is the one that gathers together Hartnell, Troughton, Pertwee, Baker, and Davison, dumps them on some moorland, and lets some of the Doctor's greatest enemies take potshots at them. Except, of course, William Hartnell had passed on by the time this series was made in 1983 (although his replacement Richard Hurndall does an excellent job), and Tom Baker was only featured as a patched-in cameo, apparently prevented from joining in by a temporal thingummy. However, this kind of creakiness comes with the territory and is soon forgotten. The assorted incarnations of the Doctor (together with a scattering of assistants) are drawn together through time and space to battle Daleks, Cybermen, Yeti--those weird androids that keep jumping into the air and disappearing--and many other old foes. They realize that they're on their home planet of Gallifrey and must eventually deal with the legacy of Rassilon, founder of the Time Lords. --Roger Thomas