If you cancel the TV portion, you will have to pay $10/month for the balance of the contract ($10x24=$240).
If you received a free TV, you will also have to pay the balance of that as well (e.g. $600x 24/36=$400)
Click Show conditions 1 - 10
on this page: Deals & Bundles
There is also a link to TELUS Home Services agreement
You will also lose your bundle discount if you switch to internet-only.