[South]

Yes, by 5pm the election coverage will all be over, whoever is PM will be in Number 10 picking their cabinet. The evening news programmes will be a summary of the day rather than breaking news coverage, a lot of people would have seen it all already/be bored of it by 10pm

It's not always a done deal by 5pm the next day, if parliament is hung, which is possible the result may not be known for several days after. In 2010 it was not fully confirmed until the following Monday that the conservatives had struck a deal with the Lib Dems.

That aside I am very aware rolling coverage will likely be drawing to its conclusion, however typically after an election the main evening bulletins attract a significant audience for a sum up of the previous 24 hours and who is in cabinet etc.