Because the Watch app is meant to communicate with the receiver via the smartphone app, we can tell the TV whether the user is on the same network (and thus at home) or not. Because of this knowledge, the Watch is able to customise notifications and actions accordingly to the context.
If the user is at home, but not watching TV, we give him a tap and kindly inform that his favourite broadcast is about to start. With his watch the user is then able to turn on his television directly and rewind to the beginning of the episode.
In another scenario, the user's favourite broadcast might start in five minutes. The user is neither at home nor has he planned a recording in advance. So what's the point here to knock around and ask if he wants to take up the new episode of Elementary? And as soon as he is back at home, he will get reminded by the Watch that a new episode is waiting for him already.
The TV is an entertainment medium and is used by people, especially if they have nothing to do and want to be entertained. With the watch, HD+ is able to expand the presence of the television while providing a useful service for its customers. By using simple interactions just at the right moment, we can use the Watch as an intermediary, that raises the TV to a new level and strengthen its quality of interaction.