Comedy series written by David Renwick and starring Richard Wilson as grumpy pensioner Victor Meldrew and Annette Crosbie as long-suffering wife Margaret.
Somehow Victor would always get involved in some kind of calamity that usually wasn't his fault and in trying to put things right he would end up in even more trouble, hence the catchphrase "I don't believe it!".
In one epsiode he is caught by his wife in bed with an old woman who it turns out is someone from a nursing home in the wrong place because of a clerical error. Of course Victor thought it was his wife but he still has a lot of explaining to do.