My son and daughter-in-law love Summer Wine too. They wanted to see Extra, Extra because of George Chakiris. After watching my DVD, his only comment was, "They seem to do better with the 1/2 hour format."
I've found that even the episodes that don't appeal to me very much, have some scenes I enjoy, so I still watch them occasionally - just not as often as the ones I like. I didn't care for A Dewhurst Up A Fir Tree so seldom watched it until I realized it has the scenes where Nora and Ivy plan to get back at Compo and lure him into the kitchen to 'de-pants' him. So now I look for a good scene in every episode instead of focusing on what I don't like.