There is a reference to Lacey Chabert's recurring role in the Crossword Mysteries series of made for television movies when she helps another character solve a crossword clue.
The Czech word for water is indeed "voda". However, there is much more about it. In every West, East, and South Slavic language water is "voda".
This is the second time Lacey Chabert and Jesse Moss worked together. Previously they starred in "Moonlight in Vermont" where they were a couple who broke up, in "Sweet Carolina" they play siblings.