Panasonic appear to have quietly (until now!) released a software update for their 2009 Freesat built-in televisions (V10/G15) that open up a working version of BBC iPlayer.
The update isn’t available via the normal Freesat route (satellite signal download), but instead through the VieraCast facility available on all these models.
To update, connect your television to your broadband router (network cable), then access by pressing the VieraCast function button on your remote which should prompt you to update the software; click ‘yes’ and the software will download via your internet connection.
Hey-presto, you should now be on version 2.303 and have iPlayer via the ‘red button’ on BBC1.
Thanks Nigel and a few other joinfreesat followers for the heads up on this one.