I have a Sony Bravia KDL-22BX200.  The telly works normally, except for the freeview programme guide, which returns all sorts of gibberish.

At ~13.30, the guide saw fit to tell me what was on ITV at 01:05 (some weather thing), on BBC 1 at 20:15, on BBC 2 at 14:30 and so on.  All on the same page, all showing only one column of data.

I would have expected multiple columns representing time slots for each programme, by each channel, starting with the current time ~13:30 on the left of the data column.  Just like every other programme guide!

The television has the current firmware, SYASOW.F16M.R128M.V04.T02.

I'd be grateful for advice for the next steps.