This pong is one of the many Binatone systems. As its name indicates, it offers 6 games : 4 pong games (squash, squash practice, football, tennis) and 2 shooting games (target, shooting).
In order to understand how this system fits into the Binatone pong range, here is simplified list of the systems :
TV Master MK IV
TV Master 4 plus 2
TV Master MK 6
TV Master MK 8
TV Master MK 10
Colour TV Game
Colour TV Game 4 plus 2
Colour TV Game MK 6
Colour TV Game MK 10
The Colour TV Game serie are colour pongs (first generation). The Colour TV Game MK 6 system is the same as the Colour TV Game 4 plus 2 except that the light gun is included in the MK 6 package while it is only optional for the Colour TV Game 4 Plus 2 (you had to buy it separately). Same marketing strategy for the TV Master 4 plus 2 and TV Master MK 6.
The two shooting games (and thus the lightgun) are also the only difference between the Colour TV Game MK 6 and Colour TV Game. And the Colour TV Game MK 6 is the same as the TV Master MK 6, except that the latter offers only black & white games.
So how to differentiate a TV Master MK 6 from a Colour TV Game MK 6 ? Well first, the name... ;-) The underside and switches of the former are orange while those of the Colour TV Game are grey. The Colour TV Game has also a small 'colour' logo next to its name (upper right), which the TV Master lacks.
The paddles are rather small, with one knob each, but are detachable and connected to the system through two small sockets. One interesting feature is that there is a switch to turn sound on / off (great !).
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Colour TV Game MK 6 (model n° 01 / 4761)
BUILT IN GAMES
6 games : squash, squash practice, football, tennis, target, shooting
Two detachable paddles with knob
Start, Manual serve
Game selection and player options (power, speed, bat size, angle, serve, sound)
RF TV video output, 2 x controller plugs, lightgun port