Complex sentence: In its early days the show was edited by Max Morgan-Witts and hosted by veteran broadcaster and one-time Spitfire pilot Raymond Baxter, and by its heyday in the 1970s, it was attracting 10 million viewers per week.
Split into simpler sentences: In its early days the show was edited by Max Morgan-Witts and hosted by veteran broadcaster and one-time Spitfire pilot Raymond Baxter. By its heyday in the 1970s, the programme was attracting 10 million viewers per week.