Keep your TV mounted on a wall
There’s really no way to stop a burglar from stealing your TV and entertainment system. If a burglar is committed to walking out of your home with an object as large as a 32-inch TV, there’s practically nothing in the world stopping them. However, you can deter them by mounting your TV onto a wall.
It’ll take several more minutes for a burglar to unmount the TV. During that time, their paranoia can spike, possibly forcing them to look for other more accessible objects or to leave your home entirely. Do the same for your entertainment system if at all possible.