Wilt Bozer's addressing Mac as "pilgrim" and asking sarcastically what type of milk he wants is an obvious reference to John Wayne, since Wayne addresses someone as "pilgrim" in two of his westerns, and is also associated with the famous line, "Get off your horse and drink your milk."
Peter Thornton's ranch is called Fire Eagle Ranch, in reference to Peter working for the Phoenix Foundation.
Final appearance of Teri Hatcher as Penny Parker in the series.
First appearance of Robin Mossley as minor character, Wilt Bozer, who was reworked into second lead of the reboot series, MacGyver (2016), portrayed by Justin Hires