This wasn't intended to be the final show of the series. The show had good ratings and was set to go for a third season until George Peppard pulled out. He was going through a divorce at the time, and he quit to prevent ex-wife Elizabeth Ashley from receiving a larger share of his earnings in the divorce settlement. This ended any chance of a series' revival during Peppard's lifetime, and another season was never made.
The last show of the series.
The "Chateau Royale" hotel exterior where Banacek is staying also doubled as the Circus Circus hotel in Las Vegas during season 1.
Banacek, discussing why Merrick was in a position to steal the bonds remarks: "But I guess he's not the only Vice President who got in trouble...", which was a reference to the resignation of US Vice President Spiro Agnew after pleading "No Contest" to a charge of tax evasion just a year earlier.