I realize that the BBC doesn't share all its shows with the USA but I wish they made "The Sky at Night" available to PBS. Sir Patrick Moore was lucky to have made his great interest in all the sciences his life's work - we should all be that lucky!
I'm linking to the video where fans get to ask questions about the universe.
The question, "where is the center of the universe?" is very interesting to me because the universe has no center, in the conventional sense. When you try to locate the center you experience the higher dimensional nature of our universe - meaning that the center of the universe is everywhere and nowhere, at the same time. That means the expansion of the universe since the Big Bang is also multi-dimensional.
Sir Patrick Moore is at the head of the table wearing his trademark monocle: