WIWAL, the week clearly started on Saturday...

Lawyers start the week on Saturday?

all you had to do to prove it was to look at TV Guide...what's more, each day
began at 6:00am, [...]

This is also true for non-lawyers reading TV listings.

Now (strangely given that *all* stations stay on the air round the clock if only
to air infomercials)TV Guide has decided [...]

This, however, is not true. In these days of digital television, some
stations go off the air entirely at certain times of day and their
bandwidth is taken up by other stations.