Amazon offers Amazon Prime members the AmazonBasics 34" to 65" Tilt HDTV Wall Mount, model no. DI35A, for $19.99 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $17.97.) That's the lowest total price we could find by $26 and among the least expensive wall mounts we've seen for TVs up to 65". (We saw a similar one for $10 less a week ago, since expired.) It holds 34" to 65" flat-panel televisions weighing up to 176 lbs 200 lbs..
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that currently there's a waitlist for Amazon Mom.)