Ahead of next week’s Discovery upfront, the company is announcing three new shows coming this summer, including a spinoff of “90 Day Fiancé,” one of the most popular shows on television. “90 Day: Caribbean Love” will premiere on Discovery Plus on July 18, and two more shows — “So Freakin Cheap” (June 28) and “You, Me & My Ex” (June 20) — are coming to TLC.

“90 Day: Caribbean Love,” produced by Industrial Media’s Sharp Entertainment, will be the latest “90 Day Fiancé” offering to premiere on Discovery Plus, the streaming service the company launched in January. The streamer features a suite of the Discovery networks’ unscripted programming, from multiple “90 Day” offshoots to shows from Food, HGTV, OWN, Magnolia Network and originals for the streamer.

As of Discovery’s most recent earnings report, Discovery Plus had landed 13 million subscribers so far. It will soon venture into scripted programming also.

According to the logline for the “90 Day” docu-soap, “The tropics will provide the backdrop for relationships in various phases — from a couple who met online but will now meet for the first time, holiday flings that turned serious and even a one-night stand that turned into a pregnancy.  Will meeting in paradise work out once the suntan fades?”

TLC, meanwhile, has continued its roll as cable’s No. 1 entertainment channel this year. Among women in the 18-to-49 and 18-to-34 demos on Sunday nights, the “90 Day Fiancé” franchise is so popular that TLC is the No. 2 network on all of television (behind only CBS).

In “You, Me & My Ex,” five couples (and a lingering ex) navigate “complicated love triangles are redefining the rules and offer a different look at relationships,” according to the logline.

With “So Freakin Cheap,” four frugal families save money by dumpster diving, getting things for free, and planning weddings on the cheap. “These families will stop at nothing to spend nothing!”

Note: This story was updated with a new premiere date for “So Freakin Cheap.”