Perhaps five years ago, a friend gave me some Atari 8-bit gear, including an 800, 800XL, 1020 plotter, 1027 letter-quality printer (which is undoubtedly no good now), and a 1050 floppy drive, but no software. The stuff has been in storage in my mother's basement until recently. I just kludged up a composite video cable for it, and tested it on a home theater projector. Without software, I can only test it with the built-in "Memo Pad", but it seems to work:
https://www.flickr.com/photos/22368471@N04/25892477424/ Now I'll look for BASIC and Star Raiders cartridges. It should be fun playing Star Raiders on the big screen. That was the first game I ever played on an Atari 800, back in 1979.