I've only recently heard of the Black Books 'sit com' that was first broadcast almost 8 years ago in September 2000.
In the first episode we are introduced to Bernard, the alcoholic Irish book shop owner. But, Bernard has a problem. His taxes need doing, he's mathematically illiterate, and there's no avoiding it.
Here's a short (100 second) extract where Bernard attempts to complete his self assessment tax return without any help:
If you want the full 5 minute clip, it's worth it for the other things he does to avoid doing his tax return and especially for the final 10 seconds.