A shallow alcove on the left.

"The telescreen received and transmitted simultaneously. Any sound [...] would be picked up by it, moreover, so long as he remained within the field of vision which the metal plaque commanded, he could be seen as well as heard.[...] [T]hey could plug in your wire whenever they wanted to. You had to live--did live, from habit that became instinct--in the assumption that every sound you made was overheard, and, except in darkness, every movement scrutinized. [The] promising technology in a set-top box that can, “can distinguish who is watching, potentially allowing Intel to target advertising”. The technology could potentially identify if the viewer is an adult or a child, male or female, and so on, through interactive features and face recognition technology.

The product description on the left is from George Orwell's 1984's telescreen. On the right, we have Intel's ad-targeting, face-recognizing TV.

Speculative fiction nailed reality, but missed the target on who was doing the spying.

The title here is, of course, from a later passage: