Zenith Space Command with Phone?

[Arcanine]

I usually make it a point to never stop and grab televisions out of the trash unless they're really good looking Sony sets or are really old like this.

Sets of this era are getting rare in trash piles so I grabbed it off the side of the road.

Can anyone tell me anything about it? It has a phone cable which is pretty weird. It also doesn't work. It does turn on and make noise. Just a buzzing from the speaker and no raster. Is it worth fixing and seeing if it can be made to work again? it seems fairly interesting.