SEC+, which doesn't require subscription if you have a provider that has SECN. ESPN+ is a subscription service
ESPN+, SECNW+, and the SECNW Alternate channel are all totally different things.
I have Xfinity and get the SEC Network on my cable TV. There were still many steps so don’t wait until the last minute.
Download the ESPN app to your mobile device.
Setup your Cable TV account for online access with a user name and password (this step might take an hour or two to get established in their system... don’t wait until near tip-off).
Open the ESPN app and select WATCH. Search for tge event.
Inside the app I also selected TN as a favorite to speed up my search for TN basketball. You really can’t see much on the screen until right before the game starts. You can test your access by seeing if you can pull up the Paul Finebaum Show.
I assume there are similar hoops to jump through to watch on a desktop computer. Then there are various ways to see the game on a SmarTV.
The main thing is to get the online access to your cable provider account and you’ll need to keep those login credentials (username and PW) to sign in through the ESPN app.