Yuiky via Amazon offers the Yuiky 23" - 55" Full-Motion TV Wall Mount for $42.99. Coupon code "50TVMOUNT" drops the price to $21.49. With free shipping, that's $22 off and the lowest price we could find. It features the ability to extend, pan, swivel, and tilt in any direction.

Note: The 37"- 60" option drops to $27.69 and the 37" - 70" option drops to $29.49 via the same coupon code.