Clear Signal TV Antenna
Pulls in local broadcast channels without a monthly bill.
$39.95
Free shipping, and 30 days to send it back for a full refund if it isn't right.
What it's good for
Amplified, USB powered
An inline booster runs off a USB port on the TV, so there's no separate power brick to find an outlet for.
Flat enough to hide
Thin panel with adhesive mounts. Behind a curtain or high on a window usually beats sitting behind the TV.
One-time cost
Over-the-air broadcast is free. There is no account, no subscription and nothing to cancel.