Q: How to connect mac book pro via apple tv to tv

Did it work before?

What model Mac?

Have you tried the troubleshooting here:

Use AirPlay to see your Mac screen on an HDTV - Apple Support

This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.

brinkstein wrote:

 

apple tv cannot connect from mac pro to apple tv.

Answers can only be as helpful as the details provided, and almost none have been given here.   Connecting how?  AirPlay?  Home sharing?   Was this something that was working before?  If iTunes has been updated to version 12.2 and you have enabled the new Apple Music service home sharing will be blocked/disabled so it can no longer be used.

Can you elaborate on the issue?

Brian Cook4 wrote:

 

If iTunes has been updated to version 12.2 and you have enabled the new Apple Music service home sharing will be blocked/disabled so it can no longer be used.

That is incorrect

What happens when you click on the Display icon on the top tool bar, and select your Apple TV from there.

Use AirPlay to see your Mac screen on an HDTV - Apple Support

brinkstein wrote:

 

At one point, it worked

What are you referring to?

Are these movies in iTunes or on your desktop? What happens when you attempt to view? More detail is needed if you wish to receive help.

Click on your Apple Tv's name, and then on the option to Mirror. Then turn on the TV and set it to the input the Apple Tv is connected to.