I watched DOCTOR WHO as it came. My intro was actually INVASION EARTH: 2150 A.D., followed months later by DOCTOR WHO AND THE DALEKS (which has always been a disappointment to me, by comparison with the sequel).
Then followed Jon Pertwee. Philly's Channel 17 ran "THE SILURIANS" to "DAY OF THE DALEKS". Reportedly, they syndicated 3 seasons, but Channel 17 skipped the "pilot" and cut if off after the 1st story in the 3rd year, effectively runnnng only 2 years' worth. First, 1 ep. per night, M-F at 7:30 PM (escept for the last ep. of "DAY OF THE DALEKS", which they announced would be on Friday at 10 PM, as they apparently decided to cut the show off at that point). About a year later, it turned up again, one ep. per WEEK, Saturdays at 11:30 AM. All were cut for commercial time.
Then in May '79, Channel 12 (PBS) got Tom Baker's 1st 4 years. They began running it 1 ep. per week, Friday's at 10 PM. But after about a month, they began running it 5 times a week, at 7:30 PM (or was it 6:30 PM?). But for the first 8 months or so, they ran the stories at random. I sent them a copy of the episode list I got from STARLOG magazine, and the wrote back, thanking me and saying when the show would begin on Saturday at 3 PM, they would start over from the beginning and run complete stories each weekend, in the correct order. They did! At that point, they were all cut for commercial time, even though it was a PBS station, that's the copies they got from the distributor. Those "edits" also had unneccesary coming attractions at the beginning and end of every episode, narrated by Howard Da Silva. (The HORROR!!)
When Baker's last 3 seasons arrived, they were seen fir the first time in "movie" versions, all edited together (sometimes BADLY!!). But these versions, apart from the cliffhangers, were otherwise UNCUT, and Baker's 1st 4 seasons turned up in the same form as well. Later still, UNCUT versions of all of his individual episodes (and other stories as well) turned up. Some of those stories I wound up taping 3 or 4 times apiece, trying to get the best possible copies.