No. The log in will be valid for 30 days. It will automatically reset for another 30 days every time you open the app. So, if you log in once and come back every week to catch up on your favourite shows, you will not need to log in again.
Logging in with a username and password
The username and password to log in is the same one you use to log in online to check your cable account. If you currently don’t access your account online, you can sign up at Manage my account.