Longer Lightning Cable
Your Apple TV comes with a Lightning cable to charge up the remote, but it's not very long, especially for a living room. If the nearest outlet is a ways away from your couch, it might be best to get a longer cable.
Luckily, Amazon has a six-foot cable that can fit the bill, and it's only $8. You can also get 10-foot cables from other companies, and searching for them on Amazon will yield a lot of different options.