Not as such, no. It turns up regularly on Radio 4 Extra, so you might prefer to wait for it to come around. The pilot also gets broadcast fairly often as part of a big Saturday morning "Dad's Army" special they sometimes rebroadcast.
The pilot was about George Mainwaring returning from living abroad with his wife, and deciding to purchase a seaside pier to refurbish; but the bank manager from whom he seeks a loan is Arthur Wilson. However, Arthur Lowe then passed away, so when the programme went to series his character was replaced with the unlikely combination of former ARP Warden Hodges and Frank Pike.
It's not written by anybody associated with the TV series of "Dad's Army" but by those who adapted the scripts for radio, so there's none of the wit or depth (and it lacks most of the cast). It's a curio; I wouldn't go so far as to say it's not funny, but it's pretty broad.
(On the other hand, it's one hell of a lot better than "The Boy Who Saved England")...