Difference wouldn't be a great deal between monitors and TVs. The only addition to a TV is a tuner and IR control.
As for energy consumption, these max ratings may differ but the actual consumption during normal use of the LCD may well fall below what the CRT draws. Things that can influence this are the inputs used, brightness settings, volume settings, screen size and so on.
Think of it like a laptop and how that conserves power when it's unplugged by dimming the brightness, changing the way inputs are enabled and slowing down the processor. If your LCD was set to max brightness and a high volume that both exceed the CRTs maximums then it's quite possible it will draw more power.