I want Alexa to be able to show me info on my tv. An in-line device could be placed on the HDMI between my cable box and my tv and show me answers to my queries, access to my video doorbell, answer video calls, etc. It could even support overlaying text or video over the source tv signal, like a news feed or text-only responses, or even picture in picture.
On a separate note, this is posted as a question because you only accept ideas from seasoned developers. That’s ridiculous!