By Daniel Bates Al Michaels has been the steady voice of NBC’s “Sunday Night Football” broadcast for the better part of a decade and a half now. But at 77-years old, Michaels is looking for a change. And that change could come in the name of Amazon’s “Thursday Night Football.” According to the New York Post‘s Andrew Marchand, “I’m told Al Michaels is now at the half yard line with Amazon … I think he will end up there.” Michaels was reportedly offered a three-year, $33 million contract from Amazon’s brass to be the guiding voice of their new TNF broadcast. However, the play-by-play legend has …