The second season opener. While the original filmed title sequence remained, the titling font was changed, and the change was kept for the rest of the series.
David mentions that even John Boy sometimes skips classes. Two years earlier, Richard Masur, who plays David, appeared in The Waltons episode The System as Tom Povich, John Boy's college classmate.
This first episode of season two's four-part opener is not available via Canada's CTV Throwback streaming service. Instead, it replays part two of the previous season's two-part finale.