This was actually a promo that was leaked in rough cut form back in late October, now it’s officially aired on TV and in high-definition. It’s the longest promo yet at a full minute in length.
“The city that never sleeps is about to get a wake up call.” YouTube Link: 24 Season 8 “Wake Up Call” Promo (HD)
This is an HD version of the popular “Survive” extended trailer. It runs a full minute long and is one of the better promos in terms of showcasing all of the characters. YouTube Link: 24 Season 8 “Survive” Promo (HD)