The show starts out with them complaining about the heat because the A/C was out, yet they are wearing sweaters later in the show and when they leave at the end,everyone grabs a heavy coat.
During Bob's long distance call with Howard, the operator apparently says that "Sahib Borden needs to put more drachmas in the phone". Sahib is a Hindu word of respect, like "Sir" or "Mr.", but the drachma was Greek money before Greece went on the euro. No operator would refer to "Sahib Borden" and ask for drachmas.