In 1967 it was color and mono with instant replay on two networks. The following year one network. In the late 70s digital chalk debuted. 1980s brought closed captioning and stereo surround sound. The 90s had an in game box score. 2000 brought hd 5.1. The end of that decade brought the big game to the internet for legal streaming. For 2014, I think fox should dedicate an hd channel for 3d sports such as the super bowl. Maybe 720p 3d? The last major event to be shown live was the x games on the soon to be dead espn 3d, where ratings are not as great as the 2d channel. It will take some time for broadcasters to use 3d. The only use of 3d in an nfl game was used for gmen pats exhibition on a fios 3d channel.
There have been two super bowls where commercials and entertainment stuff have been shown. The one in 1989 had a halftime show sponsored by diet coke, which had a 3d ad, the first to be shown on tv, and the one in 2009, also on nbc, had commercials for sobe and monsters vs aliens, not to mention an episode of chuck. Both used the pulfrich effect which has been as common as red and blue 3d.
Based on recent developments, 3D would be a hard sell, especially since you'd have to have a cable sunscription to watch it that way. There's no way they'd send out 3D OTA for it and the broadcast affiliates would scream bloddy murder if there were another channel simulcasting it on cable, potentially taking away eyeballs.
Last year wimbledon nba finals games masters college football finals a few boxing matches college hoops and Olympics were in 3d. Come 2014 the only 3d you'll see is 3net and premium movie stuff on demand in 3d although the quality isn't as good as a blu ray or even a digital and 70mm imax 3d print.
How about fox transition to 1080i? Fox is the worst super bowl broadcaster, and not because of the announcers. The graphics are too huge, kinda like cbs and nbc, the 720p is blurry, and the audio ain't nothing like the stadium.