'N Sync's HBO concert special -- which was broadcast live from Madison Square Garden last Thursday night and will reair Saturday at 1:45 p.m. and Tuesday at 7:15 p.m. -- offered a winning mix of sweet teen boy singing (the tuneful tag team of Justin Timberlake and JC Chasez), randy dance moves (humpy crotch thrusts and ''back that ass up'' bunny hops), and the booming electrothump of the group's new tunes, which were well suited for supersizing to arena proportions. Here's a look at the show's high and low points, along with some things you didn't see at home.
What You Didn't See, I The crowd booing just minutes before airtime after an announcer told them not to wave banners during the show. (Sample Banner: ''JC is my 'Space Cowboy''')
What You Didn't See, II The message ''Flashlights Now!'' that came across the jumbo screen before HBO panned to the illuminated crowd
Best Tune That jaunty R&B ditty ''It Makes Me Ill.'' (Although we could've done without the too obvious hospital setup.)
Worst Tune That spiritually arrogant treacle ''(God Must Have Spent) A Little More Time on You.'' (You wish.)
Most Charismatic Member Who's Not JC or Justin Joey Fatone, who ably commanded a brief solo on ''I Thought She Knew''
Least Charismatic Member Who's Not Chris Kirkpatrick There is no less charismatic member than Chris Kirkpatrick. (See ''I Drive Myself Crazy.'')
Shiniest Props Justin's sequined doo-rags
Scariest Prop The massive John Wayne Gacy looking clown face that issued a warning to competing boy bands: ''Everybody can have their moment in the spotlight... [but] we're here to stay.'' (If it comes from the clown, it must be true.)
Mob Scene You Did See The gaggle of gals who won the chance to dance on stage. (They should've won some choreography lessons, too.)
Mob Scene You Didn't See The anxious parents massed outside the venue
Riskiest Move That Worked Justin's surprisingly competent human beat box
Riskiest Move That Didn't Work JC's shiny red butt-hugging pants. (Besides, Carmen Electra needs them back.)
Most Contrived Moment The ''TRL'' spoof where the audience gets to choose which song the guys perform next. The choices? Three nursery rhymes and ''Tearin' Up My Heart.''
Most Honest Moment Their unironic cover of Johnny Kemp's ''Just Got Paid''