The only thing to worry about with daisy-chain setups is how much signal is received by the components towards the end of the chain. If the TBS tuner card were perfectly neutral, it would contain an aerial amplifier to boost the signal by an amount equal to the signal taken by the TBS dual tuner, i.e. the strength of the signal leaving the card would equal the strength of the signal entering the card. Does the TBS card do this? Who knows!sorethumbs wrote:Is there anything to stop that 'out' being used to plug a cable straight into the aerial socket of the tv to use its built in freeview??
One test that you could do would be to look at the signal strength display on one of your TV's setup panels. See what the signal strength is with the aerial feeding the TV directly, and then look at it again with the signal going via the TBS card. If the signal strength via the TBS card is significantly lower, you may have a problem with reception on the TV; if slightly lower, same, or greater, you should be OK.
A couple of points: signal strengths are usually measured on a logarithmic scale (like sound intensity), but who knows what scale the TV signal-strength meter shows (logarithmic, linear, or something else). So TV signal-strength meters are only a very rough indication of signal strength, and you cannot compare the signal strength measured by one TV with that from a different brand of TV or other device (such as Media Center).
Secondly, do not confuse the signal-strength meter with the signal-quality meter. The signal-quality meter should read 100% at all times, even when the signal-strength meter is less than 100%. (Example: on my old Humax PVR, I got excellent reception with 100% quality, but only 67% signal strength.)
-- from CyberSimian in the UK