I've been on the BBC site to look at the Schedule for BBC4 following @Thomas95 mentioning it had a few programmes in recognition of what would have been Peter Sallis' 100th birthday. Not only was I surprised to see it's not on until tomorrow (why when today is his birthday???) but also the picture of the episode doesn't include Peter, and includes Russ Abbott who wasn't to join the series for nearly 10 years after this particular episode was shown. The lack of reverence for one of it's most successful ever comedies doesn't seem to change sadly........