Not that many years ago the CFL used to have playoff game on Saturday and one on Sunday...alternating East and West on Sun/Sat. The advantage of this is each game is an event. You can get into the pre-game shows and hype for each game. With a double-header on Sat. or Sun., you have 6+ hours of continuous football action...and fans attending the game live will be unable to watch much of the other game.
The problem with Saturday is that some people have to work during the day, especially young men, while Sunday is a day off for many more people. CFL Attendance and TV ratings are better on Sunday. as there is just more fans available to watch the games. That's why they play the Grey Cup on Sunday night, lately. (I hope they don't change the GC to Saturday too!)
With the CFL playoff games on Saturday, this will mean at least a 15% decrease in TV ratings and many regular fans will not be able to attend the game. But TV ratings are virtually meaningless for the CFL as they get paid about the same whether the ratings are lousy or great. The home gate for the semi-finals is owned by the league, and are normally shared with all teams. So a smaller Saturday afternoon crowd doesn't really affect the home team much. But a Saturday night game will have the CFL playoff game going head-to-head against HNIC, which will dramtically lower their TV ratings.
The big winner with Saturday playoffs is CTV/NFL. Fans will watch the CFL playoffs no matter when the games are on, and with no competition on Sunday, many of the these same fans will watch the NFL on Sunday, driving up their ratings. A win/win for both TSN and CTV, but unfortunately the CFL will withdraw a bit. And perhaps if the NFL wants to play on Saturday night, the CFL could just move to Friday or Tuesday...or just whither away and die.
I think the CFL should schedule a Sunday game every week of the season, from June to November. I don't know why they don't have Sunday games in the summer, those games seem very well attended when they are scheduled? And Sunday is a natural football day, so why not take advantage of the large Sunday exposure in the summer when the NFL is idle? Then continue with a CFL game every Sunday, so fans can watch a CFL game on their day off and not be forced to become an NFL fan.
Unfortunately, there is a lot of money at stake for the media moguls in promoting the NFL in Canada, and the CFL is getting in their way. Shunting them off to Saturday is the first step, then burying them in the media. Could this explain why Rogers Sportsnet Pacific didn't even mention the Als/Esks game on Sunday until the 30 minute mark of the show? They lead off with highlights from every NFL game, then MLB, Ryder Cup...then a quick amateurishly-edited clip from the lone CFL game? On a Canadian sports channel?? Could this be why our local Lions/Rogers sports radio station just babbles non-stop about the NFL with continual segments from American motor-mouths who can talk NFL for 15 minutes without taking a breath?