What Carduus found was also true during the primary:
The Shorenstein Center at Harvard found that coverage of Trump during the 2016 primaries was noteworthy because it consistently outmatched his standing in the polls and his ability to raise money for his campaign. Their data shows that Trump received a full one-third of all news coverage during the primary and nearly twice that of the next most heavily covered Republican candidate, Jeb Bush. He received two and a half times the news attention afforded Marco Rubio, Ben Carson or Ted Cruz.
And while comparing the volume of coverage (considering all media) is rather difficult across time, there have been extensive comparisons between the coverage that Trump got vs prior presidents during their first 100 days with respect to positivity/negativity, level of fact checking, or topics covered... all of which varied rather predictably depending on the particular media outlet's [audience] orientation.
Limiting the venues to TV however, again for the first 100 days,
Looking at Trump’s first 100 days in office, the Shorenstein Center was further able to show that even though TV news has tended to cover the White House more than Congress since the 1960s, coverage of Trump set new standards. He was the topic of 41 percent of all TV news stories –three times the usual amount – and more importantly, he was the featured speaker in 65 percent of the stories about him.