the services tend to be in the traditional side, though I think that's up to each church.
the Lord's supper is done at nearly every service, it's done much like a Catholic mass.
yes, they pass the offering plate.
yes, a sermon, but it's usually on they short side. It's supposed to be based on the bible readings for that day, which are usually the same as what the rcc reads that day... so it's kind of cool to think 'millions of Christians all over the world are reading these scriptures, too.
they don't do alter calls the away most people think of them... but everyone is 'called to the alter' to partake of communion. They have an open communion, any baptized believer is welcome (compare to rcc or Orthodox, which is not open).
some episcopal churches put their services up on YouTube, so you could check those out. (let me know if you have any trouble finding them)