Probably, though it shouldn't matter unless your speakers are firing into the TV. With a front facing monopole speaker you're talking no less than second or third reflection off the TV. That should be considerably down in level unless you are listening in a shoe box. The TV's front panel is how far away from the wall it sits on? That distance would give you how much deviance from the wall's reflection?

Toss a blanket over the TV and give a listen.

Large large flat screen TVs definitely screw up the sound.

Nasty, big reflective surfaces.

Quote:
With a front facing monopole speaker you're talking no less than second or third reflection off the TV. That should be considerably down in level unless you are listening in a shoe box.

All conventional speakers with front-firing drive-units become omnidirectional below 300-400Hz or so. So while the reflections from the TV screen will be down in HF, they will not be negligible and will lead to comb-filtering. This will not be amenable to correction with equalization.

Quote:
Toss a blanket over the TV and give a listen.

Good suggestion. If you have a friend handy, get him to move the TV back and forward while you listen to pink noise. If there are reflections from the screen, you will hear the combing move up and done in frequency as he does so,

John Atkinson
Editor, Stereophile

If your 2 channel and flat screen are on the same AC line, you should try unplugging the tv and see if that makes a difference. GG

Robert Harley wrote that anything in between the loudspeakers reduces stereo depth. Confirmed from my experience also. And probably alters frequency response somewhat.