spray it with something that the dog thinks stinks.
If the animal or child is determined they will get past the bitter apple, one of the cats at the shelter wouldnt leave an incision alone even after getting it doused in bitter apple.
Call animal control and let them deal with it and the owner, I'm not sure about the laws in your area but in mine a dog must be kept in a fenced in yard or the owner must be outside with it and in control of the animal at all times and it can never be on a tether and never left unattended.
Dogs may eat some of the grosest and strangest stuff but they wont go back to something that causes them pain and habenero's will do just that, just be sure to wear gloves if you have any cuts on your hands when making the mixture and wash your hands twice afterwards.
Eh that's the problem I'm the owner. I like the hot sauce idea. If the pet smart stuff doesn't work well I'm sure that will.
I think chewing is sign your dog likes or loves satellite too, or you are spending too much time watching TV instead of having some play time with your dog.
I say spend more time with your dog. Then you and dog can enjoy watching the TV afterward.