OT:Pocket tv reception (by 2 users)

I recently purchased one of the casio EV 660 pocket TVs, partly watch while
in the kitchen. I expected the telescopic aerial to be poor (it is) but also
expected there to an external aerial option but there isn't.

Does anybody have any bright ideas how I can improve reception?

If it helps the aerial does come out easily by removing one screw, so I
guess I could find a larger telescopic aerial as a substitute but I'm
sceptical about that actually helping.
Any way to bodge a normal coax style connection?

Failing that anybody in the market for a as new pocket tv!!

Chris.