as bob shaw reported on the 40th anniversary of ktvu it didn't seem to matter to fans that the shows were constantly repeated. however leonard nimoy had a different take of watching his old shows. >> reporter: during his first year of nbc we agreed to rebroadcast reruns as soon as the show was cancelled. we didn't have to wait long. after weak ratings over three seasons the program landed on our doorstep in 1969. before long the repeats developed a fanatical cult following and the audience built from year to year. amazing, considering that due to its short network run, there were only 79 episodes of the show. >> people don't care how many times you see it. with star trek, you can run it monday through friday. you will not see repeats in four months. and they don't care. >> this is star fleet command. you can't miss it because there's only one, two. >> reporter: when you're on tv watching tv and you're scanning to the channels and an episode of star trek comes on. are you apt to sit there and watch it. >> a couple of minutes to see how it holds up. to see how it works and to get a lit