Question: On which network did Paul Dellegatto get his broadcast meteorology start?
Context: Northern Broadcasting System was started by former Montana United States Senator Conrad Burns in 1975 as an agricultural broadcast network called the Northern Agricultural Network.  Montana's number one industry is agriculture.  Burns saw an opportunity to provide information to the agri-business community.  The network had only four stations at its beginning.  Burns grew the network and eventually sold it to enter Montana politics in 1986.  Under the guidance of the network's new President/CEO Taylor Brown, the network grew to cover parts of eight states in the Northwest and Canada.  More than 220,000 people get agriculture and farming information on radio, television, and online from the Northern Broadcasting System. The Crezz is a British television drama produced by Thames Television and shown on the ITV network in 1976.  Created by Clive Exton, "The Crezz" was set in a fictitious West London crescent, Carlisle Crescent.  The series was 12 one-hour programmes each focused on a different household.  The series was broadcast on ITV at 9pm to start with but midway through it was put back to 10.35pm because the series didn't quite get the viewing figures that were hoped for. The 1998–99 NBA season was the 53rd season for the Boston Celtics in the National Basketball Association.  The Celtics continued to build with youth as they selected Paul Pierce out of the University of Kansas with the tenth pick in the 1998 NBA draft, while acquiring second-year center Tony Battie from the Los Angeles Lakers.  Pierce would get off to a fast start as he was named Rookie of The Month in February, after the season was delayed by a four-month lockout.  However, after a 7–7 start to the season, the Celtics struggled losing ten of their next eleven games, as they traded Andrew DeClercq to the Cleveland Cavaliers for Vitaly Potapenko.  The Celtics finished fifth in the Atlantic Division with a 19–31 record, as fans began to get restless with Rick Pitino's slow growth.  Pierce averaged 16.5 points per game and made the All-Rookie First Team.  Following the season, second-year star Ron Mercer was traded to the Denver Nuggets, and Bruce Bowen signed as a free agent with the Philadelphia 76ers. Paul N. Dellegatto (born August 3, 1960 in Natick, Massachusetts) is an American meteorologist and television weather forecaster.  He is the chief meteorologist at WTVT in Tampa, Florida.  Before coming to WTVT, he became a Meteorologist for WGME-TV in Portland, Maine in 1984.  He then went on to become the Chief Meteorologist at WXII-TV in Winston-Salem, North Carolina.  He has been with WTVT since 1990, and took over for Roy Leep as the chief meteorologist in 1997 (he previously served as morning meteorologist until 1997). WGME-TV is the CBS-affiliated television station for southern Maine and eastern and northern New Hampshire in the United States.  Licensed to Portland, it broadcasts a high definition digital signal on UHF channel 38 (or virtual channel 13 via PSIP) from a transmitter on Brown Hill west of Raymond.  Owned by the Sinclair Broadcast Group, WGME also operates Waterville-licensed Fox affiliate WPFO (channel 23) under a local marketing agreement with its owner Cunningham Broadcasting.  However, Sinclair effectively owns WPFO due to Cunningham's ownership structure.  The two stations share studios on Northport Drive in the North Deering section of Portland; WGME also maintains regional studios in the Lewiston/Auburn area, as well as at the state capital in Augusta. The Utah Education Network (UEN) is a broadband and digital broadcast network serving public education, higher education, applied technology campuses, libraries, and public charter schools throughout the state of Utah.  The Network facilitates interactive video conferencing, provides instructional support services, and operates a public television station (KUEN) on behalf of the Utah State Board of Regents.  UEN services benefit more than 60,000 faculty and staff, and more than 780,000 students from pre-schoolers in Head Start programs through grandparents in graduate school.  UEN headquarters are in Salt Lake City at the Eccles Broadcast Center on the University of Utah campus. National Weatherperson's Day, also known as National Weatherman's Day, is observed on February 5 primarily in the United States.  It recognizes individuals in the fields of meteorology, weather forecasting and broadcast meteorology, as well as volunteer storm spotters and observers.  It is observed on the birthday of John Jeffries, one of the United States' first weather observers who took daily measurements starting in 1774, born on February 5th, 1744. Cindy Preszler (1960- ) is a broadcast meteorologist for WeatherSTL.com, a dynamic, interactive site delivering up-to-date weather information for the Greater St. Louis metro area.  She was a television weathercaster who was the chief meteorologist at KSDK-TV 5, the NBC affiliate in St. Louis, Missouri, from 1998 until 2016 when she accepted a buyout from Tegna.  Preszler was one of five female chief meteorologists that were on TEGNA-owned NBC affiliates, including Monica Woods of ABC affiliate KXTV in Sacramento.  Prior to arriving in St. Louis in October, 1998, the South Dakota native worked at several TV stations, including Chicago's NBC-owned WMAQ-TV, as well as on The Weather Channel (1987–92).  Preszler has won 5 regional Emmy awards (including 17 nominations), an AP Award for feature story, 6 Missouri Broadcasters awards (15 nominations), one Illinois Broadcasters award, and was a fill-in for both The Today Show (NBC) and CBS This Morning.  She previously chaired the AMS Broadcast Conference, and was featured in Sport Illustrated's "Women of Weather."  She is currently a member of and/or holds the American Meteorological Society Seal of Approval, the National Weather Association Seal, and the International Association of Broadcast Meteorology. The Oakland Athletics Radio Network consists of 17 stations (16 A.M., 1 F.M., plus 1 F.M. booster and 1 F.M. translator) in the state of California.  The English-language broadcasts for Oakland Athletics Major League Baseball games start 50 minutes before game time on KGMZ only with the network broadcast beginning 20 minutes prior to game time.  Additionally, there is a 4-station Spanish-language network (all A.M.) with affiliates in italics.  The Spanish-language network only airs night & weekend home games. College GameDay (branded as ESPN College GameDay built by The Home Depot for sponsorship reasons) is a pre-game show broadcast by ESPN as part of the network's coverage of college football, broadcast on Saturday mornings during the college football season, prior to the start of games with a 12:00 p.m. ET kickoff.  In its current form, the program is typically broadcast from the campus of the team hosting a featured game being played that day (such as one being broadcast by an ESPN network or ABC), and features news and analysis of the day's upcoming games.
Answer: CBS