It is designed for VHF and FM, not the UHF channels mostly used these days, so it probably wouldn't be too good for modern TV, but it would be good for FM!I have no idea what it would sell for today. Probably $9.95!
I would think it would be more of a collector's item. Not sure what you meant by asking if my dad is "escape velocity". Actually, he is 91 and is in late stage Alzheimer's but was a brilliant man in his day.