If you delayed the program onto your TV/laptop/whatever by some number of seconds, that surely would defeat the detector, though, of course, the detector could

If you delayed the program onto your TV/laptop/whatever by some number of seconds, that surely would defeat the detector, though, of course, the detector could look for this. A better way to defeat it would be to play two programs on the same or two TVs near each other, then the two signals would interfere in a way that should confuse the detector. Blackout curtains (which I recommend for other reasons), would work best though.