i loveee serials set across time theyre soo fun!! some great little comedy vingettes really, with the reveal of the mary celeste and the monster house just being an ordinary house of horrors where the doc and ian tried to come up with a super scifi explanation. all the empire state building stuff was fun. and the daleks are always nice to see! and it was such a sweet and lovely ending to barbara and ians story, with them getting a little epilogue and then you find out the doctor was watching them! i like to imagine he often does from time to time. i love ones era for having epilogues and tardis opening and endings so much more often!! and with multiple parts the serial is way more fast paced and engaging