Cant remember TV programme title
During the 70's I used to watch a TV programme that I have been unable to trace, it was about time travel I think and had several adults a boy and a dog in it,
At the end of each episode they all walked into the distance away from the camera and disappeared or de materialised and then I think re appeared somewhere else at start of next episode. It may have been american series as many were in the 70's but any info anyone can remember about it or a title would be a great help, am unable to trace it