When he stepped onto the Austin City Limits stage for the very first time on that brisk January day in 1978, Merle Haggard was at the top of his game. It had been over a decade since his first national hit, "Sing A Sad Song", and not that long after "Okie From Muskogee" had firmly planted his music in the public consciousness. He had already been declared "Entertainer of the... see more