Amazon [amazon.com] has the 75″ Vizio M75Q6-J03 M6 Series Quantum LED 4K UHD Smart TV on sale for $729. Shipping is free.
Also out there:
Sam’s Club [samsclub.com] has for its members: the 75″ Vizio M75Q6-J03 M6 Series Quantum LED 4K UHD Smart TV on sale for $729. Store pickup is free. Otherwise, delivery is free w/ a Plus membership.