That new 60" Panasonic (Model:TCP60GT30) came in at 97.1 lbs.
If you are connected using component cables (separate Red, Blue, and Green connectors) you may be lucky and only either the Red or Blue (I forget which does what) my be loose or shorting. (the Green cable carries the B&W information.... so if it goes, you get no picture at all)
If you are connected by HDMI it probably is the TV.
My husband and I (and we’re no spring chickens) had NO trouble lifting and placing our Pan Viera 50” on a TV stand. Very easy and that might be a consideration for some.
Mounting it high on a wall would have been more difficult, but I’m sure the two of us could have done it.