This is a lovely product. It's a really well put together edition of the best series of one of the finest BBC comedy programmes ever. The tiny caveat is this; two episodes of the fourth series were not known to exist when this set was issued, so they're not included. They have shown up since. So, if you want the these two episodes you need to buy something else as well. Fortunately BBC Audio has made then available in two formats both as an additional disc in the Series 6 set and also as a single, cheap disc. (Under the title 'Sid James' Dad'.) So, while this was complete when it was issued, it's not complete now and you need to make up the numbers elsewhere if you're of a completist ilk.