Was she on any reality TV?

Her path to TV started in law, not entertainment. In, Guilfoyle moved to New York to host the program Both Sides on Court TV. She also worked as a legal analyst on Anderson Cooper 360°.

She joined Fox News in February 2006 as host of the weekend show The Lineup, which was eventually canceled, but she remained a regular contributor for the network and in 2011 was picked as co-host of The Five. In 2014, Guilfoyle began hosting and then co-hosting Outnumbered. She also made appearances on America Live, Red Eye, and The O'Reilly Factor.

Some clickbait articles online claim she appeared as a cast member on The Celebrity Apprentice, a reality competition show hosted by Donald Trump in which celebrities competed to raise money for charity. Those claims don't hold up: Guilfoyle's name does not appear in the actual cast lists for any season of that show, and her own public biography doesn't include it. It's worth being skeptical of those sources.

The closest she came to unscripted television was a joint appearance with Donald Trump Jr. on The View in 2018, which was a talk show interview rather than a reality format.

So the short version: 14 years at Fox News, a legal career before that, and a political career after. No reality TV.