At work we need a big screen showing schedule of work - including changes as they occur - much like an airport monitor showing arrivals and departures.

Plan was to connect a PC that displays the internal web page showing the schedule. The page would expire every minute to force a reload. The page itself gets its data from an excel spreadsheet that would be updated as work is assigned, completed, cancelled, moved forward or delayed.

That's a waste of a PC, of course. Connecting a TV directly to the network and having it do the work would be so much simpler. Thus:
- is there a TV widget that can be configured to show and update from a single but configurable URL within a closed corporate network?
- any comments on the problem in general?