Audio Pops on certain channels

I have a 4K cable box and noticed recently with some channels (AMC & Showtime) the audio for loud noises pops/cracks. I have a sound bar hooked up and it happens when I try using the tv built in speakers as well.

Not sure if anyone else is experiencing this. Could it be the cable box itself? Haven’t had this issue before and not happening to other TVs in the house.

Thanks