Us common brits typically don't drink delicate blends like Twinings 'English Breakfast' all day long... we'll tend to stick with 'builders tea', i.e. strong unsophisticated blends full of tannins.

Most people in the UK in fact probably drink Tetleys (from Indian giant Tata), "Yorkshire" tea (Taylors of Harrogate), PG Tips (from Unilever), Typhoo (another Indian giant), Lipton (also Unilever), or a generic supermarket brand.