IIRC, the BBC used to offer "movie edits" of the Tom Baker stories. When I lived in N.J. in the 70's, the local PBS station switched to showing these on the weekends with great fanfare. I think it was one episode every weeknight before that.
The L.A. PBS station here would show an entire story on Saturday mornings in the late 80's, early 90's, but in it's original episodic form. I'm kind of used to watching a story all in one go as a result.