Question: When is Celebrity Big Brother coming to the network which, along with ABC and the network which broadcasted Highway to Heaven, is the other major broadcaster based in NY?

Knowledge 1: New York City
The television industry developed in New York and is a significant employer in the city's economy. The three major American broadcast networks are all headquartered in New York: ABC, CBS, and NBC. Many cable networks are based in the city as well, including MTV, Fox News, HBO, Showtime, Bravo, Food Network, AMC, and Comedy Central. The City of New York operates a public broadcast service, NYCTV, that has produced several original Emmy Award-winning shows covering music and culture in city neighborhoods and city government. [SEP] Knowledge 2: Celebrity Big Brother (American TV series)
Celebrity Big Brother also known as Big Brother: Celebrity Edition is a spin - off series of the American reality television series Big Brother. This season will air during the winter of the 2017 -- 18 network television season on CBS and will be the second U.S. Big Brother season to air outside the usual summer television season, the first being Big Brother 9 in 2008. Julie Chen will return as host, with Allison Grodner and Rich Meehan returning as executive producers. The season will be produced by Fly on the Wall Entertainment in association with Endemol Shine North America. CBS announced that the series is set to premiere on February 7, 2018 and conclude on February 25, 2018. [SEP] Knowledge 3: Highway to Heaven
Highway to Heaven is an American television drama series that ran on NBC from 1984 to 1989. The series aired for five seasons, running a total of 111 episodes. The series starred Michael Landon as Jonathan Smith, and Victor French—-Landon's co-star from "Little House on the Prairie"-—as Mark Gordon. Jonathan is an angel who has been stripped of his wings and is now "on probation", sent to Earth. He meets Mark, a retired policeman now bouncing from job to job. At first distrustful of Jonathan, Mark comes to realize his true nature and is then given a job: to assist Jonathan in helping troubled people on Earth. Jonathan and Mark are given assignments by "The Boss" (i.e. God), where they are required to use their humanity to help various troubled souls overcome their problems.
Knowledge 1: New York City
The television industry developed in New York and is a significant employer in the city's economy. The three major American broadcast networks are all headquartered in New York: ABC, CBS, and NBC. Many cable networks are based in the city as well, including MTV, Fox News, HBO, Showtime, Bravo, Food Network, AMC, and Comedy Central. The City of New York operates a public broadcast service, NYCTV, that has produced several original Emmy Award-winning shows covering music and culture in city neighborhoods and city government. [SEP] Knowledge 2: PGA Tour on ABC
PGA Tour on ABC is the "de facto" branding used for telecasts of the main professional golf tournaments of the PGA Tour on the American Broadcasting Company (ABC) television network in the United States. ABC broadcast the PGA Tour from 1966 to 2006. From 1962 to 2009, ABC served as the broadcast home of The Open Championship. The British Open on ABC was the longest-running entertainment program in ABC's history and the last-surviving ABC program to debut in the "circle a" era. ABC also held the broadcast rights of the US Open from 1966 through 1994. and the PGA Championship from 1965 until 1990. [SEP] Knowledge 3: Highway to Heaven
Highway to Heaven is an American television drama series that ran on NBC from 1984 to 1989. The series aired for five seasons, running a total of 111 episodes. The series starred Michael Landon as Jonathan Smith, and Victor French—-Landon's co-star from "Little House on the Prairie"-—as Mark Gordon. Jonathan is an angel who has been stripped of his wings and is now "on probation", sent to Earth. He meets Mark, a retired policeman now bouncing from job to job. At first distrustful of Jonathan, Mark comes to realize his true nature and is then given a job: to assist Jonathan in helping troubled people on Earth. Jonathan and Mark are given assignments by "The Boss" (i.e. God), where they are required to use their humanity to help various troubled souls overcome their problems.
Knowledge 1: Highway to Heaven
Highway to Heaven is an American television drama series that ran on NBC from 1984 to 1989. The series aired for five seasons, running a total of 111 episodes. The series starred Michael Landon as Jonathan Smith, and Victor French—-Landon's co-star from "Little House on the Prairie"-—as Mark Gordon. Jonathan is an angel who has been stripped of his wings and is now "on probation", sent to Earth. He meets Mark, a retired policeman now bouncing from job to job. At first distrustful of Jonathan, Mark comes to realize his true nature and is then given a job: to assist Jonathan in helping troubled people on Earth. Jonathan and Mark are given assignments by "The Boss" (i.e. God), where they are required to use their humanity to help various troubled souls overcome their problems. [SEP] Knowledge 2: New York City
The television industry developed in New York and is a significant employer in the city's economy. The three major American broadcast networks are all headquartered in New York: ABC, CBS, and NBC. Many cable networks are based in the city as well, including MTV, Fox News, HBO, Showtime, Bravo, Food Network, AMC, and Comedy Central. The City of New York operates a public broadcast service, NYCTV, that has produced several original Emmy Award-winning shows covering music and culture in city neighborhoods and city government. [SEP] Knowledge 3: Celebrity Big Brother (American TV series)
Celebrity Big Brother also known as Big Brother: Celebrity Edition is a spin - off series of the American reality television series Big Brother. This season will air during the winter of the 2017 -- 18 network television season on CBS and will be the second U.S. Big Brother season to air outside the usual summer television season, the first being Big Brother 9 in 2008. Julie Chen will return as host, with Allison Grodner and Rich Meehan returning as executive producers. The season will be produced by Fly on the Wall Entertainment in association with Endemol Shine North America. CBS announced that the series is set to premiere on February 7, 2018 and conclude on February 25, 2018.

Answer: February 7, 2018