Here's the rest of the schedule for June 7, 1974. (The PBS stations either didn't broadcast before 5pm or weren't listed.)
Source: June 1, 1974 TV Guide (Sonny and Cher on cover)
2-KUTV, Salt Lake (NBC)
2b-KBOI, Boise (CBS)
2c-KTWO, Casper (all nets)
3-KID, Idaho Falls (CBS)
4-KCPX, Salt Lake (ABC)
4b-KAID, Boise (PBS)
5-KSL, Salt Lake (CBS)
6-KIVI, Boise (ABC)
7-KUED, Salt Lake (PBS)
7b-KTVB, Boise (NBC)
8-KIFI, Idaho Falls (NBC)
10-KWRB, Thermopolis (all nets)
10p-KBGL, Pocatello
11-KMVT, Twin Falls (all nets)
11p-KBYU, Provo
5:00 2 Local news
2b 3 10 11 CBS news (Cronkite)
2c 4 ABC news (Reasoner/Howard K. Smith)
4b 7 10p Mister Rogers
5 Dragnet
7b 8 NBC news (Chancellor)
5:30 2 10 NBC news
2b 2c 3 4 7b 8 11 Local news
4b 7 10p Electric Company
5 CBS news
6:00 2 5 6 10 Local news
2b 3 Movie "Sidekicks" with Larry Hagman and Louis Gossett Jr.(TV movie from 1974)
2c Hawaii Five-O
4 Truth or Consequences
4b 7 10p Sesame Street
7b To Tell the Truth
8 Hogan's Heroes
11 Brady Bunch
6:15 6 ABC news (30 minute news starting at :15? Who else did that?)
6:30 2 Sale of the Century
4 To Tell the Truth
5 Ozzie's Girls (reboot of Ozzie and Harriet, but with two college girls instead of Ricky and the kids)
7b Let's Make a Deal
8 Brian Keith
10 To be announced
11 Six Million Dollar Man
6:45 6 Local news
7:00 2 2c 7b 8 10 Sanford and Son
4 Brady Bunch
4b 7 10p Weather
5 Movie "Sidekicks"
6 Star Trek
11p Bicentennial Lecture
7:30 2 7b 10 Brian Keith
2b 3 Movie "Crime Club" with Lloyd Bridges and Cloris Leachman (1973 TV movie)
2c Six Million Dollar Man
4 Movie "Man Who Wanted to Live Forever" with Stuart Whitman and Sandy Dennis (1970)
4b 7 10p Wall Street Week
8 Police Surgeon (often called the worst TV show of all time)
11 Odd Couple
8:00 2 7b 8 10 Movie "Anderson Tapes" with Sean Connery (1971)
4b 7 10p Washington Week in Review
6 Brady Bunch (again, what other Mountain station started prime time at 8?)
11 Toma
11p National Spelling Bee (hosted by Jean Shepard)
8:30 2c Odd Couple
4b Washington Connection
5 Movie "Crime Club"
6 Six Million Dollar Man
7 10p June Wayne
9:00 2b Hawaii Five-O
2c Star Trek
3 Mannix
4 Toma
4b 7 10p Upstairs, Downstairs
11 Hawaii Five-O (NOT same episode as above)
11p Irv Kupcinet
9:30 6 Odd Couple
10:00 2 2b 2c 3 5 8 10 11 News
4 Mod Squad
6 Toma
7 Women in Science
10:30 2 7b 8 10 11 Tonight (Joey Bishop guest hosts)
11p Central Utah
10:35 2b Movie "Fearless Vampires" with Roman Polanski and Sharon Tate (1967)
2c Movie "Sidekicks"
10:40 3 Movie "Charlie Chan at the Wax Museum" (1940)
5 Mission Impossible
11:00 4 News
6 In Concert (California Jam concert w/Emerson Lake and Palmer, Black Oak Arkansas)
11:30 4 Movie "Black Cat" (w/Lugosi and Karloff; 1934)
11:40 5 Movie "Carousel" with Shirley Jones (1956)
Midnight 2 7b 8 Midnight Special (Kinks, ELO, Buddy Miles)
2c Movie "Crime Club"
12:45 4 Movie "Mad Doctor of Market Street" (1942)
Source: June 1, 1974 TV Guide (Sonny and Cher on cover)
2-KUTV, Salt Lake (NBC)
2b-KBOI, Boise (CBS)
2c-KTWO, Casper (all nets)
3-KID, Idaho Falls (CBS)
4-KCPX, Salt Lake (ABC)
4b-KAID, Boise (PBS)
5-KSL, Salt Lake (CBS)
6-KIVI, Boise (ABC)
7-KUED, Salt Lake (PBS)
7b-KTVB, Boise (NBC)
8-KIFI, Idaho Falls (NBC)
10-KWRB, Thermopolis (all nets)
10p-KBGL, Pocatello
11-KMVT, Twin Falls (all nets)
11p-KBYU, Provo
5:00 2 Local news
2b 3 10 11 CBS news (Cronkite)
2c 4 ABC news (Reasoner/Howard K. Smith)
4b 7 10p Mister Rogers
5 Dragnet
7b 8 NBC news (Chancellor)
5:30 2 10 NBC news
2b 2c 3 4 7b 8 11 Local news
4b 7 10p Electric Company
5 CBS news
6:00 2 5 6 10 Local news
2b 3 Movie "Sidekicks" with Larry Hagman and Louis Gossett Jr.(TV movie from 1974)
2c Hawaii Five-O
4 Truth or Consequences
4b 7 10p Sesame Street
7b To Tell the Truth
8 Hogan's Heroes
11 Brady Bunch
6:15 6 ABC news (30 minute news starting at :15? Who else did that?)
6:30 2 Sale of the Century
4 To Tell the Truth
5 Ozzie's Girls (reboot of Ozzie and Harriet, but with two college girls instead of Ricky and the kids)
7b Let's Make a Deal
8 Brian Keith
10 To be announced
11 Six Million Dollar Man
6:45 6 Local news
7:00 2 2c 7b 8 10 Sanford and Son
4 Brady Bunch
4b 7 10p Weather
5 Movie "Sidekicks"
6 Star Trek
11p Bicentennial Lecture
7:30 2 7b 10 Brian Keith
2b 3 Movie "Crime Club" with Lloyd Bridges and Cloris Leachman (1973 TV movie)
2c Six Million Dollar Man
4 Movie "Man Who Wanted to Live Forever" with Stuart Whitman and Sandy Dennis (1970)
4b 7 10p Wall Street Week
8 Police Surgeon (often called the worst TV show of all time)
11 Odd Couple
8:00 2 7b 8 10 Movie "Anderson Tapes" with Sean Connery (1971)
4b 7 10p Washington Week in Review
6 Brady Bunch (again, what other Mountain station started prime time at 8?)
11 Toma
11p National Spelling Bee (hosted by Jean Shepard)
8:30 2c Odd Couple
4b Washington Connection
5 Movie "Crime Club"
6 Six Million Dollar Man
7 10p June Wayne
9:00 2b Hawaii Five-O
2c Star Trek
3 Mannix
4 Toma
4b 7 10p Upstairs, Downstairs
11 Hawaii Five-O (NOT same episode as above)
11p Irv Kupcinet
9:30 6 Odd Couple
10:00 2 2b 2c 3 5 8 10 11 News
4 Mod Squad
6 Toma
7 Women in Science
10:30 2 7b 8 10 11 Tonight (Joey Bishop guest hosts)
11p Central Utah
10:35 2b Movie "Fearless Vampires" with Roman Polanski and Sharon Tate (1967)
2c Movie "Sidekicks"
10:40 3 Movie "Charlie Chan at the Wax Museum" (1940)
5 Mission Impossible
11:00 4 News
6 In Concert (California Jam concert w/Emerson Lake and Palmer, Black Oak Arkansas)
11:30 4 Movie "Black Cat" (w/Lugosi and Karloff; 1934)
11:40 5 Movie "Carousel" with Shirley Jones (1956)
Midnight 2 7b 8 Midnight Special (Kinks, ELO, Buddy Miles)
2c Movie "Crime Club"
12:45 4 Movie "Mad Doctor of Market Street" (1942)