Final answer:
Life on Mars (LOM) had two seasons in its original UK run. The US version only lasted for one season.
Step-by-step explanation:
The show Life on Mars (LOM) ended up having two seasons. The original UK version, which aired from 2006 to 2007, sparked a franchise that includes several international adaptations. However, the US version of Life on Mars was less successful, lasting for only one season before being cancelled. The second season provided a conclusion to the series. Additionally, there is a sequel series titled "Ashes to Ashes," which also had two seasons and served as a continuation of the storyline with some new characters.