Here are the numbers for both the Trump and Clinton acceptance speeches and Trump wins out big.

I had earlier reported a difference of nearly 2 million viewers in favor of Trump.  Here is the update to that report: 

According to Nielsen Media Research data published Friday, an estimated 27.8 million people watched Hillary Clinton address the delegates in the Wells Fargo Center on the final night of the Democratic National Convention.
Meanwhile, an estimated 32.2 million people watched Donald Trump give his acceptance speech at the Republican National Convention in Cleveland last Thursday. (An additional 2.65 million viewers watched Trump’s speech on PBS, while another 3.9 million watched Clinton’s on PBS.)