I thought the special was fantastic. My mother was crying her eyes out at it because I think it was very close to home for her; my nan has just turned 85 and is in very poor health these days, plus she is so like Nana Royle you'd think they'd based the character on her. For example, I can remember having a virtually identical conversation to the 'wafer thin ham' one when I turned vegetarian!
I was helpless with laughter when Nana was telling Barbara about the A La Carte menu and she said "they had soup of the day - which was Friday, and roast beef and ice cream sorbet between courses and then they both had a crepe" to which Barbara replied "Well I expect they needed it after all that food"