Wii Fit is a great help to watch closely how your weight changes
It registers your weight on daily basis and you can see how much it changed each day, month and year
There is also graphics
It helps to exercise by playing fun games
If any of you has wii, I'd recommend wii fit plus
There is also fit in six which is not a balance board game. You just copy what the trainer does, it doesn't measure though. There are nice and various exercises from latin dance moves, aerobics to pilates
If you have PS3 move controller, there is an exercising game with Mel B
I tried only once, it seems very promising but to have a better idea I need to play a bit more
PS Move camera scans your body and tells you how precisely you did the exercise
You also use PS move controller
If you have pilates ball, step etc you can add them and there are exercises also for those
It tells you how much calories you've burnt like wii fit
I haven't tried much yet Mel B one
This post looked like a game cansole ad:)
Well if you or your children have any of those consoles, you can take advantage by using them doing some sports