I've seen her a few times, but never actually on Broadway. I saw her as The Lady of The Lake in Spamalot on tour, and Joanne in RENT on tour. I also saw her in Hugh Jackman's mostly-one-man show before it went to Broadway. Originally, he had Merle Dandridge and Angel Reda as his 2 back-up performers, and they sang "Take Me Or Leave Me" while he changed into his Peter Allan costume, and they KILLED it. As I understand it, he replaced both of them when the show when to Broadway, opting for a larger, more anonymous ensemble of women.
It's been something like 6 and a half years since I saw Hugh Jackman's show, and I haven't seen Merle onstage since. Still, I remember her being very good in all 3 shows I saw her in, particularly in Spamalot. I haven't been keeping up with her career in the intervening years, so I actually wasn't aware she's been doing TV, but I'm excited to see her back onstage.