user: Question: Name the year that Birds of a Feather category for Most Popular Actress was nominated
Columns: ['Year', 'Nominated For', 'Award', 'Category', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1990.0, 'Birds of a Feather', 'British Comedy Awards', 'Best TV Comedy Newcomer', 'Won']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Category" = 'Most Popular Actress' AND "Nominated For" = 'Birds of a Feather';