Can you get a VGA cable 50 feet long?
Nope, about 5 foot is all. Sorry.
I’m kinda computer/electronic device illiterate. When I grew up the only electronic games were pinball machines, TV’s had round screens, weighed 150lbs and were rare.
I use a 25 footer from my laptop HDMI output directly to my TV and it works fine.
Meritline is a good place for all kinds of neat stuff like this. There are many cable choices there, but here’s a good place to start..
http://www.meritline.com/50-60-ft-HDMI-Cables-—c-14000.aspx
Note that some items are shipped from USA, and some from China. Please note that shipping from China takes considerably longer, but shipping is mostly free, or very low cost.