Source: http://megalextoria.blogspot.com/2013/10/frogger-intellivision.html
Frogger was released as an arcade game by Sega in 1981. This was one of the earliest video gaming classics and the gameplay for the time was unique. This was the era when most of the genres we think of today were created. Being one of the most successful arcade games of all time, of course there were a huge number of ports, sequels and remakes for various home systems over the years.
The above ad is from the May 1983 issue of BLiP and is for the Intellivision version (by Parker Brothers of course). I'm not sure how the sales break down per system but as of 2005, 20 million copies of Frogger had been sold worldwide in its various incarnations.
Read more: http://www.megalextoria.com/wordpress/index.php/2013/10/28/frogger-intellivision/