Near the end of Series 1, Topsy and Tim have moved house. In the intro for Series 2 however, while they've moved house no move than a few miles away from their old home the placement of Topsy and Tim's family car and themselves are still in the same area as shown on the Series 1 intro.
We keep the TV on Sprout (Universal Kids) and when Topsy and Tim come on, all playing stops and everyone just is entranced by this show. Even I (Grandma) enjoy the adventures of this sweet family. It's too bad all the DVDs are the wrong region. I would buy them all and just binge watch this fun show!