Idiot box and Widget

Idiot box noun - An electronic device with a screen and speakers that reproduces images and sound.

Widget and idiot box are semantically related. In some cases you can use "Widget" instead a noun phrase "Idiot box".

Widget noun - An interesting and often novel device with a practical use.

Idiot box and widget are semantically related. You can use "Idiot box" instead a noun "Widget".