Other shows that have Green Wing cast members....
I've figured out any comedy show is good as long as it has two or more former Green Wing cast members.
Episodes - Tamsin Greig and Stephen Mangan
Friday Night Dinner - Tamsin Greig and Mark Heap
Twenty Twelve - Olivia Coleman and Karl Theobold
Love Soup - Tamsin and Mark (again, all thought he was only a guest star)
Black Books - Tamsin and Julian guest stared in at least 1 episode.
Peep Show - Patterson Joseph and Olivia Coleman
There must be an exception to the rule somewhere, Is there a bad show that has 2 green wing cast members.