1941 hands down
Crave has some of the classic Grey Cups available for streaming on their network. I don't know how long they've been up there, Crave doesn't have a "newly added" queue like on Netflix, but as I skim through Crave often, watch occasionally, I would guess not very long.
Which games? I get Crave with my satelitte but rarely log in. Watch more Netflix and only keep my sat for TSN and HBO.
2008 and on.
It's not much, but its nice to see the CFL available for streaming on one of these platforms where you get to watch when you want to watch.
They also have the documentary that TSN did on the CFL--the first episode focused on Anthony Calvillo growing up in a bad neighborhood, Miami I think--but I don't recall the name.
Los Angeles.
Not sure how great the game really was, but for significance it certainly ranks near the top: 1935. The "Winnipegs" as they were known then before the became the Blue Bombers, win the first Grey Cup for a western team ever. Shocking for the time based on everything I know about the time and a major upset. Fritz the 'Galloping Ghost' Hanson was a one man wrecking crew that day! 
Put 2015 in the mix. May not be the greatest ever but it in the mix. Thank you Eskimo’s and REDBLACKS!
Not top 10 or even top 20. Great 1st half, so-so 2nd half, overall a good but not great game.
Definitely not a classic on par with 1989, 1987, 1983, 1976, 1996, 2005, 1998, 1981 ect (just the ones that immediately come to mind).