I want to know the answer to the following question:
What prevented BBC2 from broadcasting on its scheduled launch date?
All the background I'm provided with is that "BBC TV was renamed BBC1 in 1964, after the launch of BBC2 (now BBC Two), the third television station (ITV was the second) for the UK; its remit, to provide more niche programming.". Is that enough to answer the question?
Answer: no