Tonight’s top TV
The Big Bang Theory - Nine - 7.30pm: Tension runs high when everyone is staying at the same hotel for a science event and Bernadette runs into her ex. How Earth Made Us - ABC1 - 8.31pm: Scottish Professor Iain Stewart explores humankind’s turbulent relationship with the wind and details how people have exploited it through the ages. Roads to Memphis - SBS ONE - 11.34pm: In 1968 escaped convict James Earl Ray shot and killed Dr Martin Luther King Jr. This is the fateful narrative of the killer and his victim, set against the turbulent American society at that time.