I did a thread about this a year or so ago...but the thing that having a TV is an audio system that is the big concern..is your cable signal.
I have never seen a cable feed that doesn't have serious noise and DC voltage on the ground. Once this DC voltage gets onto the grounds of you power and systems..the sonic impact is far from subtle...most of you actually don't know what your missing if it has been a long time...or never, since you had just an audio system.
You can check this two ways. Get someone to lend you a voltmeter and measure the ground on the cable TV feed. But even better , and this is assuming a home, go outside and disconect the cable where it comes into your home and the cable ground that has been attached to that pipe that serves as your AC ground. Then go inside and disconnect the TV cable/digital box completely from your system...inc. AC power. Then, after this simplification, just connect your best source component to you amplification..and listen. Noise floor will be lower, voices will bloom...and listener fatigue will drop a great deal. (If your not familiar with cable/ground...etc. you might get a friend to help you...don't want anyone screwing up their system....or getting a shock..even if it is only static shock).
So, what I am saying is the worst thing about televisions and their related gear is: they screw up the sound.
I have never seen a cable feed that doesn't have serious noise and DC voltage on the ground. Once this DC voltage gets onto the grounds of you power and systems..the sonic impact is far from subtle...most of you actually don't know what your missing if it has been a long time...or never, since you had just an audio system.
You can check this two ways. Get someone to lend you a voltmeter and measure the ground on the cable TV feed. But even better , and this is assuming a home, go outside and disconect the cable where it comes into your home and the cable ground that has been attached to that pipe that serves as your AC ground. Then go inside and disconnect the TV cable/digital box completely from your system...inc. AC power. Then, after this simplification, just connect your best source component to you amplification..and listen. Noise floor will be lower, voices will bloom...and listener fatigue will drop a great deal. (If your not familiar with cable/ground...etc. you might get a friend to help you...don't want anyone screwing up their system....or getting a shock..even if it is only static shock).
So, what I am saying is the worst thing about televisions and their related gear is: they screw up the sound.