Avast WiFi Inspector Discovered Something Unusual

I did an Avast Wifi scan today and it found an unusual device in the “discovered devices” section. Should I be worried?

https://en.wikipedia.org/wiki/Sky_UK

I’m with EE, though, not Sky.

Hang on. Disconnected my Sky HD box and now it’s not appearing. God, I feel like a right daft prat, but better safe than sorry you know.

It would only have been silly not to have asked a question about something that concerned you.