Can I use a standard definition tv with apple tv 4th generation?

According to this you can

https://support.apple.com/en-us/HT203422

Switch from High Definition (HD) to Standard Definition (SD):

  • Apple TV (4th generation): Go to Settings > Apps > iTunes Movies and TV Shows > Video Resolution and select Standard Definition.

 

 

Yes! You will need this adapter. A Amazon link has been provided below

http://amzn.to/2rwEsOE