My Apple TV turns off my tv even when I'm watching another source
I don't understand why my tv gets turned off when my Apple TV 4 goes to sleep. All devices (ATV, Blu-Ray, DVR) are connected through a receiver. I'll be watching a program on cable and when the ATV goes to sleep, it shuts off the tv even though I'm not watching anything from ATV.
Is this normal? Any way of avoiding this annoying function?
MacBook Pro, OS X Mavericks (10.9.5)