Not every NHL player and coach is made for television. The majority of players tend to clam up when the cameras come on and give out the same cliché responses to questions and appear as if they would rather be anywhere else other than a media scrum. When compared to the other major sports, it appears that hockey has fewer former player / coaching personalities in the broadcast booth, especially at the national broadcast level. Think of all the players and coaches we see on NFL broadcasts on Sundays. The same goes for in-studio analysis of MLB and the NBA.
There are a select few NHL players (as well as coaches) who have shown the ability to convey their knowledge about the game of hockey in an entertaining way. These players appear to have the best chance of making the jump to television once their playing and coaching careers have ended.