Besides the ColecoVision, Coleco released several other videogame systems:

TELSTAR (1978)
The Coleco Telstar was released in June of 1976 for $49.99 USD, barely. Coleco had not gotten the Telstar to pass it's initial FCC approval. Given one week to fix the problem, Coleco needed a way to block the signal from interfering with important equipment. The shield came in a form of a ferrite ring that had gotten the signals within acceptable limits. In the Christmas season of 1977, nine new designs of the Telstar were released, each of them doing virtually the same thing. It was labeled "Video Sports" with four different games, all of them PONG clones. During it's lifespan, Coleco had produced about nine different variations of thier machine and tossed about one million 'obsolete' machines. One interesting feature is that the RF cord which is permanately attached (similar to the cord found attached on the Atari 2600) can be stored inside the system by feeding it back through the hole it protrudes out of.

The unit takes 6 C batteries and can be ran off of Coleco's Perma Power Battery Eliminator (#2298).
The games on the Telstar include Tennis, Hockey, and Handball.
Source: vidgame.net


Coleco released a total of 8 different tabletop games:
- Berzerk
- Frogger
- Donkey Kong
- Donkey Kong Jr.
- Galaxian
- Ms. Pacman
- Pacman
- Zaxxon

For more information about the Coleco Tabletops, visit the handheldmuseum

The Gemini is a clone of the Atari 2600. It was manufactured by Coleco and contained the same switch variations as the 4 Switch Atari 2600. Coleco had no problem manufacturing the system as they had already went to court with Atari over copyright laws of Coleco's Expansion Module #1 and won the license to produce clones based on the 2600 technology. When you bought the Gemini you got two controllers, an RF switch, a power cord, and the Donkey Kong or Mouse Trap cartridge.
Source: vidgame.net