For about a year I have watched continuous content on the TSN-4K channel.  Even though it was not pure 4K content, it's far better than the regular HD content from TSN1-5 on my 85-inch Sony.  Now when there is not a scheduled 4K event, the channel is blocked, and all I see is a Shaw notice that "there is no scheduled event at this time".  Can someone give me a reason why programming is being blocked when a non-4K event is on the air?  When there are only 3 4K channels, losing 33% of the total is frustrating.