The firmware for each service provider is unique, therefore any "hacks" would need to be specific to Videotron in your case as well as the IPG supplier...
I don't believe these exist.
For example, you'd think they could write code that.
Ignores the (HD) and (DD5.1) in the programme titles, etc, etc.
My only suggestion is to express your displeasure with these problems to Videotron, and perhaps to SA, so that the next firmware addresses the various issues.
It gets better with each firmware update, but it sure is a slow process...
We just recently had an update at Rogers which addressed some issues that were over two years old (the "kickout to live" bug for example)