Chris O'Down in 'Girls'
HBO Chris O'Down in 'Girls'

Don't we all need more Christopher Guest in our lives? (Right?) So it's great, welcome news that HBO is going ahead with a full series order for Guest's new TV show "Family Tree," currently slated to run eight half-hour episodes.

Variety reports that "Family Tree" will be a UK/US co-production that will air simultaneously on BBC 2, and that will star "Bridesmaids" own Chris O'Dowd as well as Guest (who'll direct) and his frequent collaborator and series co-creator Jim Piddock.

O'Dowd will play a drifting 30-year-old who decides to explores his family roots after receiving a mysterious collection of belongings from a great-aunt he's never met.

READ MORE: Christopher Guest is Working on a TV Comedy Called 'Family Tree'

When first reported on back in May, the proposed show was compared to Larry David’s "Curb Your Enthusiasm" in terms of its use of improvisation -- no surprise, given that's been Guest's preferred style in his filmmaking. According to Variety, no premiere date has yet been set.

Guest hasn't directed a film since 2006's awards-season satire "For Your Consideration," though he did oversee that focus group sketch at the Oscars earlier this year. O'Dowd recently appeared on another HBO series -- he played Thomas-John, the insecure venture capitalist who angled for a threesome with Jessa (Jemima Kirke) and Marnie (Allison Williams) in "Girls" and who made a surprise appearance in the season finale.