How long do you think until 1080p 50/60Hz brodcasts are available?

[Nerdkiller likes BD]

I was thinking, is it possible to get a 1080p broadcast picture at 50/60 frames per second, and if it is, how long do you think until it happens? Also, is cost going to be another issue, as WWE has spent $20mil. on upgrading to HD which is being displayed at 1080i and if 1080p broadcast is achieved, do you think it will cost anything to upgrade for the faster passed sports, i.e. Olympic events, high flying wrestling matches, etc.

One more thing, why don't movie channels display 1080p movies at 24fps (including ad breaks incase it will be troublesome to switch from 60fps 1080i during ad's to 24fps 1080p during movies), cos, I mean, isn't there enough bandwith in the air to display programmes at under 30fps in 1080p? Let me know what you have to say on this.