Occasionally, I hear some traffic from the Bucks dispatch channel on 155.550 out in the Downingtown area, though it's hit and miss sometimes (usually I have to have my scanner against the window of my office to pick it up; I work nights in a warehouse). If it's a decent sounding job (ie. a working fire or an MVA), I'll flip on the Bucks/MontCo online feed.
On Xmas Day, I did hear a dispatch for a chimney fire (possibly in West Rockhill; at least it was somewhere in that area of Bucks) on that channel from the west end West Chester (where reception of anything other than ChesCo is spotty at best). Pretty strong signal, I might add.
A couple of side notes: I'd hope MontCo's signal is a strong once their new VHF-High paging channel is in full swing. Also, I can get Lehigh's fire paging channel pretty good from work.