Whilst I appreciate the quickness of the response, the lack of accompanying explanatory commentary in your replies leaves me a little short of information. Let me try to clarify:
1) Calibration (LUT) Tester seems to focus purely on gamma. Whilst this may be valuable in terms of performing the greyscale calibration, I'm at a loss to understand its value as regards the colour and tint calibration. Would you be able to explain its utility in this scenario?
2) Spacematch DCM doesn't actually appear to be relevant to my needs, considering all I aim to do is transmit unmodified patterns to a connected TV. It also costs a considerable amount, and is as a result well out of my price range, not to mention being overkill for domestic use.
I confess I'd be much happier if someone would simply tell me whether Windows 7 uses colour profiles by default when sending video data to an external display and, if so, how I can disable it. On the other hand, I know OS X uses colour profiles by default and I don't think there's any way of disabling it: can someone prove me wrong or offer a workaround?