I'm fond of these films, particularly 'The Dalek Invasion of Earth', but they were only ever intended as cash-ins to the television series, and in particular The Daleks phenomenal success in the William Hartnell era. That cashing in is the only reason they exist, they were made as disposable fluff to make money and entertain the kids in the Summer holidays.
There was a time when these two films were shown every year near enough, throughout the 1980s and up until at least the end of the 1990s Channel4 held the rights to show them and did so. These days... no. It may be that in this digital age the films are finally too kitch and crude to be shown, or simply that no one has the rights perhaps.
I find the whole concept of this 'Dr Who' fascinating, but they are films that belong in the 1960s, 'Dr Who' as he is named is such an old fashioned gentleman, and the literal dotty grandfather scientist figure of childrens fiction, that it is hard to conceive of him and his world as ever changing. You couldn't update him. And you shouldn't update him.
So a human time-traveller, who made the ship in his back garden, and stepped into eternity with his granddaughter Susan.
What became of them I often wonder...?
Could still be alive, and maybe he as in an updated actor playing that role, meet the "real Dr?"