<P> Brian Lowry of The Boston Globe said: "Our attraction to Apocalypse TV runs deep, as our culture plays out different futuristic possibilities . That's still no reason to clone material, nor is it a reason to deliver characters who are little more than stereotypes ." Allison Keene of The Hollywood Reporter wrote a negative review, stating: "The sci - fi drama presents The CW's ultimate vision for humanity: an Earth populated only by attractive teenagers, whose parents are left out in space ." Kelly West of Cinema Blend gave it a more positive review while noting: "CW's Thrilling New Sci - fi Drama Is A Keeper . CW's The 100 seeks to explore that concept and more with a series that's about equal parts young adult drama, sci - fi adventure and thriller . It takes a little while for the series to warm up, but when The 100 begins to hit its stride, a unique and compelling drama begins to emerge ." IGN's editor Eric Goldman also gave the show a more positive review, writing: "Overcoming most of its early growing pains pretty quickly, The 100 was a very strong show by the end of its first season . But Season 2 elevated the series into the upper echelon, as the show become one of the coolest and most daring series on TV these days ." Maureen Ryan of Variety named the show one of the best of 2015 . </P> <P> In 2016, the year Rolling Stone ranked the show #36 on its list of the "40 Best Science Fiction TV Shows of All Time", the episode "Thirteen" attracted criticism when Lexa, one of the series' LGBT characters, was killed off . Critics and fans considered the death a continuation of a persistent trope in television in which LGBT characters are killed off far more often than others--implicitly portraying them as disposable, as existing only to serve the stories of straight characters, or to attract viewers . A widespread debate among writers and fans about the trope ensued, with Lexa's death cited as a prime example of the trope, and why it should end . Showrunner Jason Rothenberg eventually wrote in response that "I (...) write and produce television for the real world where negative and hurtful tropes exist . And I am very sorry for not recognizing this as fully as I should have". </P> <Table> <Tr> <Th> Season </Th> <Th> Timeslot (ET) </Th> <Th> Episodes </Th> <Th_colspan="2"> First aired </Th> <Th_colspan="2"> Last aired </Th> <Th> TV season </Th> <Th> Rank </Th> <Th> Avg . viewers (millions) </Th> <Th> 18--49 rating (average) </Th> </Tr> <Tr> <Th> Date </Th> <Th> Viewers (millions) </Th> <Th> Date </Th> <Th> Viewers (millions) </Th> </Tr> <Tr> <Td> </Td> <Td> Wednesday 9: 00 pm </Td> <Td> 13 </Td> <Td> March 19, 2014 (2014 - 03 - 19) </Td> <Td> 2.73 </Td> <Td> June 11, 2014 (2014 - 06 - 11) </Td> <Td> 1.68 </Td> <Td> 2013--14 </Td> <Td> 150 </Td> <Td> 2.59 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 16 </Td> <Td> October 22, 2014 (2014 - 10 - 22) </Td> <Td> 1.54 </Td> <Td> March 11, 2015 (2015 - 03 - 11) </Td> <Td> 1.34 </Td> <Td> 2014--15 </Td> <Td> 157 </Td> <Td> 2.46 </Td> <Td> 0.9 </Td> </Tr> <Tr> <Td> </Td> <Td> Thursday 9: 00 pm </Td> <Td> 16 </Td> <Td> January 21, 2016 (2016 - 01 - 21) </Td> <Td> 1.88 </Td> <Td> May 19, 2016 (2016 - 05 - 19) </Td> <Td> 1.31 </Td> <Td> 2015--16 </Td> <Td> 165 </Td> <Td> 1.94 </Td> <Td> 0.7 </Td> </Tr> <Tr> <Td> </Td> <Td> Wednesday 9: 00 pm </Td> <Td> 13 </Td> <Td> February 1, 2017 (2017 - 02 - 01) </Td> <Td> 1.21 </Td> <Td> May 24, 2017 (2017 - 05 - 24) </Td> <Td> 0.91 </Td> <Td> 2016--17 </Td> <Td> 158 </Td> <Td> 1.47 </Td> <Td> TBD </Td> </Tr> </Table> <Tr> <Th> Season </Th> <Th> Timeslot (ET) </Th> <Th> Episodes </Th> <Th_colspan="2"> First aired </Th> <Th_colspan="2"> Last aired </Th> <Th> TV season </Th> <Th> Rank </Th> <Th> Avg . viewers (millions) </Th> <Th> 18--49 rating (average) </Th> </Tr>

Where was season 4 of the 100 filmed