What was the commercial first video game?

I assume you're asking what the first commercially available video game was.

That would be Computer Space, an arcade game that was released in 1971.

The first home console was the Magnavox Odyssey, released early in 1972.

Atari's Pong, which many believe to be the first video game, was also released as an arcade game in 1972, although the home consoles weren't made available until '75.