Ok - so try this -- when you get home.. get the beer -- get nekkid.. and well switch over to the TB and do what comes natural- when he comes in ask if he wants to join in the fun?
Or invest in a lock on the door?
Or even better still tell him that when you get home from work, you need an hour or so of alone time to unwind and well, you'd be happy to chat with him later when you've decompressed