Now hang on here. Lipton is perfectly fine for iced tea. Of course loose leaf tea, or other teas are better for basic cup of tea. And I hate that people have never experianced a cup of perfect tea...with loose leaf, boiling water, a tea strainer. (lemon, sugar, milk optiona in the cup).
But for iced tea. Lipton is actually preferred. It makes a rather clear iced tea --add a pinch of baking soda to counter act the tannin and clear it and round out the flavor.
Using lipton tea bags for 'sun tea' is good...a few tea bags in a large jar and sit that out in the sun for an afternoon for long warming steeping. Amazingly smooth.
And don't put it in the fridge until it cools to room temp.