Have you checked Shaw's status page for Northern Alberta?
This is a user-to-user forum, not an official path to report networking problems to Shaw.
You need to use your telephone or do a "chat" to make an official report to Shaw.
Do you have a coaxial-cable "splitter" in your home? Can you try replacing it, or bypassing it?
Have you tried a different coaxial-cable between the wall-outlet and the splitter (or the Shaw TV or Shaw Internet box) ?
Are the coaxial-cable(s) tightly connected at each end?
Do you have multiple "wired" and multiple "wireless" devices? Do they all go "down" at the same time? At the same time that your TV goes down?
Have you telephoned Shaw, and gotten a technician to remotely-connect to your Shaw TV box or your Shaw Internet box, to remotely view the "performance status" inside each device, e.g., "weak signal" or "electrical brown-out" ?
Have you tried a different Ethernet cable (CAT-5e or CAT-6, not CAT-5) into your "wired" computer?
Do your neighbours also subscribe to Shaw services? Do they have the same problem at the same time?