Mergers and acquisitions in media and tech are often whirlwinds of uncertainty, yet two takeaways are convincing regarding Comcast’s all-cash acquisition offer for 21st Century Fox this week. First, the US operator is quite clearly desperate to prevent Disney becoming a Netflix-esque streaming superpower and, secondly, any agreed deal will plunge Comcast into an alarming amount of debt. Perhaps one more thing is a given – that we are in store for more twists and turns along the way. Comcast is recruiting investment banks to fund the $60 billion offer, of which around $16 billion is estimated to be for UK operator Sky. Fox is attempting to buy the 61% of shares it does not already own in Sky, while…