Possible Clues:

• They're often served up with twists
• Dogs' and pigs' tails -- and what they do?
• The All-American Rejects' are "Happy"
• Some games have multiple ones
• Finishes posting — site initially down
• Sending out terminations
• Start of transmission postponed until after grand finales
• The musician honoured Rossini in playing his finales
• Finishes posting, having succeeded at last
• Closures