To someone who hasn't spent a long time in England, the difference between the tea in these two boxes might not be immediately apparent.
To the born and bred Englishman however, the "té rojo" or "té negro" available here (I don't quite understand the distinction, and neither do the people selling it) is a sad offering indeed. Unlike the rich brick-red colour exemplified by Yorkshire Tea, adding milk to the tea you get in Spain results in a sickly pale grey liquid that might have been wrung from a dishcloth. It tastes like it too.
That doesn't mean tea isn't drunk here; in fact it's surprisingly popular, but it's not like the English-style - for a start it's more commonly referred to as infusiones rather than té, and this includes your fruit teas, chamomile, green tea, jasmine etc that are the most common choices. If té negro/rojo is ordered, people will normally take it black.
To get a drink of good old fashioned English tea the way you're used to, you have to buy it from El Corte Inglés, or smaller importers, and pay the import prices, of course. As I mentioned in a previous post though, the milk still tastes different. Or is it the water? Or both? At any rate, for the real connoisseurs, expat tea will unfortunately never taste quite right.
You can't have everything.