On BBC TV that is. I know that he is slightly older than this.
However I remember the very first episode. The second week I seem to remember they repeated the first episode before the second episode. They set off for the Stone Age.
I remember it was very educational at the time without preaching or propaganda. Alternate stories would be the past and the future.
One of his early companions was a character called Victoria who I named my daughter after. Then another companion was Leela, the primitive alien played by the lovely Louise Jameson. She later appeared as Jim Bergerac's girlfriend and is currently in Emmerdale. I understand she also appeared in Eastenders but I didn't see her in that.