Where to put couch?

My parents just hung a new tv. Running into issues of where to place couch. They just got the couch & chair so buying new is something they won’t consider. Opposite of tv wall is a sliding glass door.

Pls don’t come for the carpet color, it’s ugly in my opinion but they are old and don’t care and slowly redoing so please be nice. Just looking for furniture placement here. Thanks in advance :)