Some of the snakes suggested are not exactly what the OP needs/wants I believe. They want a hang around snake that will just chill while you watch TV. My boa, ball, and tree python are not in that category but my bloods are dead on. Maybe a short tail would be a good choice. Stay away from a blood python as they are probably larger than you are wanting. The other two choices are heavy bodied, will eat anything, and are usually like holding a pet rock. My bloods will just stay around my neck or just lay across me as I watch TV. My big girl will hang with me for hours with no complaint.
Young short tails can have a bit of an attitude so maybe a sub adult would be a good fit.
Are you sure they have cow in their meat!?!![]()