_sntp._tcp local ?
Right now my soundbridges are burning valuable hostcount on my VPN-1 box when they wander off to fetch the time.
I have a mDNS server nicely configured to advertise all my home services via zeroconf, but the NTP settings in the soundbridges are statically configured...
I know it's really really small, but, attention to detail is always a sign of a great product
IPTV.