Saw this at JB Hifi today for $5, the original sticker price was $19.95
Put in 3 AAA batteries and plug into AV of the TV.
Pretty much the same as this one;
https://www.youtube.com/watch?v=VYq-aBqi9y8
I do not like the games too much myself, but for $5 most of us cannot complain. Good for a testing AV signals for TVs??
You can!