. >> reporter: the search is on for "n.c.i.s. l.a.'da hunt. >> we're trying to get to vietnam. >> reporter: it takes them to vietnam and a famous co-star. >> it's a cool tiger. i guess it's the tiger from "hangover." [ skreemg snchlgd. >> it's a tiger. >> almost all of chris o'donnell's family members have done cameos on the show. the one exception is 17-year-old chip. >> it's funny. he looks -- he looks like i did in "scent of a woman." he's taller than i am. it's like, my god. we'll have to get him a bit part. >>> there's $100,000. >> liam neeson talked to us about the commuter, where he gets caught up in ♪ >>> time to get you up to speed on more headlines. first up in tonight's "know & tell." britn britney's bling. is she secretly engaged. ♪ give me give me more >> reporter: tanned, toned, and wearing a ring on that finger. she flashed the ring while on vacation. prompting rumors she may be ready to say i do for a third time. ♪ oops, i did it again >> reporter: a source tells "e.t." they wouldn't be surprised if an engagement is rev

. >> reporter: the search is on for "n.c.i.s. l.a.'da hunt. >> we're trying to get to vietnam. >> reporter: it takes them to vietnam and a famous co-star. >> it's a cool tiger. i guess it's the tiger from "hangover." [ skreemg snchlgd. >> it's a tiger. >> almost all of chris o'donnell's family members have done cameos on the show. the one exception is 17-year-old chip. >> it's funny. he looks -- he looks like i did in "scent of a woman." he's taller than i am. it's like, my god. we'll have to get him a bit part. >>> there's $100,000. >> liam neeson talked to us about the commuter, where he gets caught up in i like this organic mac and cheese. and i like this organic mac and cheese. is that my mac and cheese? is that my belt? is that my perfume? is that my bronzer? is that my choker? is that my choker? are those my bangs from three years ago? is that my earring in your nose? (huffing) winning tastes so good. you'll like them both but love our price. award-winning organic mac and cheese from aldi. simply smarter shopping. ♪ >>> time to g

. >> reporter: the search is on for "n.c.i.s. l.a.'da hunt. >> we're trying to get to vietnam. >> reporter: it takes them to vietnam and a famous co-star. >> it's a cool tiger. i guess it's the tiger from >> almost all of chris o'donnell's family members have done cameos on the show. the one exception is 17-year-old chip. >> it's funny. he looks -- he looks like i did in "scent of a woman." he's taller than i am. it's like, my god. we'll have to get him a bit part. sometimes a cough gets in the way of a good night's sleep. that's when he needs vicks vaporub. proven cough medicine. with 8 hours of vapors. so he can sleep. vicks vaporub. goodnight coughs. ito become dangerous.d for an everyday item new tide pods child guard pack. helps keep your laundry pacs safe and your child safer. align, press and unzip. >>> there's $100,000. >> liam neeson talked to us about the commuter, where he gets caught up in we are the tv doctors of america, and we may not know much about medicine, but we know a lot about drama. from scandalous romance, to ri