Final answer:
Cable has transformed TV news by making it a partisan vehicle for opinions, with networks like CNN, MSNBC, and Fox News offering 24/7 coverage with a certain ideological slant.
Step-by-step explanation:
One of the ways that cable has transformed TV news is by recasting it as a partisan vehicle for opinions. In the era of network television, news had a more broad-based reporting style to appeal to a wide audience. However, the advent of cable news networks such as CNN, MSNBC, and Fox News introduced a shift toward 24/7 coverage, with different networks often presenting news with a certain partisan or ideological slant. This transformation led to news broadcasts where editorial commentary is combined with reporting, catering to viewers' expectations for news that aligns with their own viewpoints.