Tonight's episode of ""Suddenly Susan"" includes not just one, but two reunions of huge proportions. The first reunion is for Brooke Shields and Christopher Atkins, who starred in ""Blue Lagoon"" together. The show made Shields a star, but the two actors haven't seen each other in 19 years. The second reunion is for the '60s band The Turtles, whose hits included ""So Happy Together."" Howard Kaylan and Mark Volman come together again to sing that song. Jack, Susan, Maddy and Luis attend a journalism conference. Suspicious that Jack wants to renew his romance with her--which she doesn't want--Susan is surprised when he reunites with a sexy former girlfriend, Meegan Garrity. Susan tries to make Jack jealous by flirting with a bitter, unresponsive columnist but later learns that Jack was only trying to make her jealous. Meanwhile, recovering alcoholic Maddy, who is surrounded by cocktail-drinking conventioneers, cannot drink and is also forbidden from smoking on the premises. After exhausting h