BBC - Radio 4 History - What If
I have always considered the BBC as a high quality broadcaster of news and information (at the expense of the TV licensees and British tax payers). This particular BBC Radio station/brand, Radio 4 broadcasts mostly radio documentaries.
"What If?" is a program that discusses the 'what ifs' in history. Such 'what ifs' include what if the Nazis successfully invaded the British Isles and what if George Washington's quest for US independence from the British Empire was defeated.