Best Buy Offered to Test my Own Content on a USB. Suggestions???

[bizmord]

So after chatting with a Sharp representative at BestBuy, he suggested bringing my own USB with content I want to test as lots of their non 4K models are hooked up via coaxal and running at best a 480p content.

Now my quest for content to find and place on USB. Any suggestions?

I guess I need a scenery scene that moves to see if screen will jitter while processing all those details of leafs, land or rocks if it's let's say something like the mountains.

Need a dark scene test. Also scene with lots of people faces close ups.

Any suggestions where I can find those short clips? Maybe you guys have some?

thank you.

P.S. I'll be testing

Samsung UN75H7150

Samsung UN75H6350

Sharp LC-80LE650U