<Table> <Tr> <Th_colspan="2"> Pretty Little Liars (season 1) </Th> </Tr> <Tr> <Td_colspan="2"> Season 1 DVD cover </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Troian Bellisario </Li> <Li> Ashley Benson </Li> <Li> Holly Marie Combs </Li> <Li> Lucy Hale </Li> <Li> Ian Harding </Li> <Li> Bianca Lawson </Li> <Li> Laura Leighton </Li> <Li> Chad Lowe </Li> <Li> Shay Mitchell </Li> <Li> Sasha Pieterse </Li> </Ul> </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 22 </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> ABC Family </Td> </Tr> <Tr> <Th> Original release </Th> <Td> June 8, 2010 (2010 - 06 - 08)--March 21, 2011 (2011 - 03 - 21) </Td> </Tr> <Tr> <Th_colspan="2"> Season chronology </Th> </Tr> <Tr> <Td_colspan="2"> Next → Season 2 </Td> </Tr> <Tr> <Td_colspan="2"> List of Pretty Little Liars episodes </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Pretty Little Liars (season 1) </Th> </Tr>

How many episodes are in pretty little liars season 1