The NFL does have a sense of humor, after all.
Nearly 50 years ago, the league's TV arm began producing blooper reels, which initially aired on The Tonight Show Starring Johnny Carson. The response was such that the first official Football Follies special aired a year later.
In 1976, NFL Films produced Son of Football Follies. You've probably seen this more recently on NFL Network. To spice things up, the special was narrated by a number of Looney Tunes characters, all voiced by the legendary Mel Blanc. Yes, including Elmer Fudd.
Edit, 12/26/17: The original video posted was deleted. I found a more complete edition, with portions of the opening & closing titles edited out.
I remember Porky Pig's famous bit very well, as this video awakened some old memories. Blanc would return 13 years later, in one of his final jobs, for Super Duper Football Follies, which we'll serve up another time.