Just a reminder for anyone who uses Remote Play:

If you have HDMI Link set up on the PS4 (so it turns your TV on when the PS4 is turned on), remote play will the also turn the TV on.

Now this might not be the case for everyone and their specific TVs, but I realized this when I connected via remote play earlier today and found out my TV has been on all day so it's worth checking out if your utilize both features.