PULLMAN, Wash. (AP) Hall of Fame broadcaster Bob Robertson is stepping away from the microphone.

Robertson issued a statement through Washington State on Monday announcing his retirement, effective immediately. He served as the lead broadcaster for Washington State football from 1964-2011 - except for three years between 1969 and 1971 - before moving into an analyst role for the past seven seasons.

"I've been with the Cougars a lot of years, more than half a century, calling basketball, football for the fans around the Northwest and elsewhere around the country and I've enjoyed every minute of it. It's been great to be with you Cougars at your meetings and get-togethers, and I hope we can do it again and I'm sure we will," Robertson said.