Virgin Media is the first 'quad play' entertainment provider in the UK, offering services like 100mb broadband and mobile with over 4 million customers and 12,500 employees. Their social media strategy has resulted in significant engagement, with a notable increase in 'likes' and customer interactions, highlighted by creative marketing initiatives such as customer stories involving their mascot, Biscuit. Key learnings emphasize the importance of daily engagement, humor, and adapting to customer queries across multiple channels.