Here is a page of artwork from TV Comic (apologies for the poor quality, it’s under glass).
TV Comic was a mainstay of ‘wet playtime’ when I was at school. I used to hope it would rain ( I was a fat, stay-inside kind of kid) so I could reread the teacher’s stash of comics – there were hundreds of them, a veritable treasure trove.
This page is from a story called The Magician, drawn by Gerry Haylock, and appeared in issues 1117 – 1183 in 1974 starring Jon Pertwee. In the latter ’70s, to save money ( I assume that they knew the licence was going to Marvel for the imminent Doctor Who Weekly? ), strips were reprinted, and so Pertwee was overpainted with Tom Baker. This was done here by John Canning, and saw print in issues 1397 – 1403.
Here’s a couple of close-ups to show the changes.