Thing about this set-up is you have to assign the TV a name so it'll know when to listen or it'll be flippen picking-up on normal speach. I've used an AVSI for years - they'r cool.
I say 'Elvira' and it has 10 RNG'd responses, like Can I help you, You Called, Sir, etc...
then i can give it a command, it'll answer ph and acts as a sweet home security via motion or sound and has 64timers to turn things on/of throught the day as needed. You can also call home and adjust things n listen/look at your house.
Works off X-10
e