When Hawkeye and BJ are trying to tip their overturned jeep back onto its wheels BJ says "I saw some MPs do this once." This is possibly in reference to the MPs that righted a flipped ambulance in The M*A*S*H Olympics (1977).
The North Korean soldier nicknamed "Ralph" by Hawkeye and BJ repeatedly says "hangbog!" (pronounced "hung-bo!") This is the Korean word for "surrender".
When BJ crashes the jeep, it marks the second time Hawkeye has been in such an accident. He overturned his own jeep similarly in "Hawkeye" (1976).
Despite Klinger having since given up dressing in drag to get a Section 8, he appears here (and several times in future episodes) in his pink dressing gown.