Heat H of Robot Wars: The Second Wars was the eighth of twelve heats which determined the Semi-Finalists of Robot Wars: The Second Wars. The episode featuring Heat H was originally broadcast on January 8, 1999 on BBC Two. The broadcast managed to attract 5.94 million viewers, an increase of 350,000 viewers when compared with the previous episode. According to BARB, this meant it ranked second in the top thirty highest rated BBC 2 broadcasts for the first time, during 4-10 January. It also became the first episode to beat The Simpsons in the ratings, finishing only behind Gimme Gimme Gimme.