https://www.whathifi.com/reviews/sky-glass
[You may well be wondering what happens
if you've got the Sky Glass TV but
decide to cancel the Sky TV service,
which is something you can do.
Somewhat surprisingly, the TV does have
an aerial socket and can receive Freeview channels,
and those will be available, along
with any separate streaming services
you've subscribed to and any external sources
that are connected to the HDMI sockets,
if you cancel your Sky subscription.]