In the present day, pretty much all of the Los Angeles-area stations in are spread-out locations throughout the region. As we may already know, KNBC and its Telemundo sister station KVEA recently re-located from Burbank to Universal City. The-now former NBC Burbank complex is located across the street from the Walt Disney Studios (which also houses the west coast headquarters of ABC), and is down the street from the Warner Brothers studio complex. Right down Route 134 from the Disney lot (going east), KABC-TV is a few minutes away in Glendale (near the 134/Interstate 5 interchange), as part of another business campus that Disney owns. Heading back west down 134, and connecting with US 101, is the CBS Studio Center, which houses KCBS-TV and KCAL-TV.
In West Los Angeles, the Fox duopoly of KTTV and KCOP are just west of the 10/405 interchange, and mutli-ethnic station KSCI sits right around the corner from them. Meanwhile, KTLA remains the only television station in the area based in Hollywood.
At various points in time, nearly TV station in town was based in Hollywood...KTTV (and Metromedia Square) were located across the street from KTLA until KTTV moved to West L.A. in 1997; Metromedia still owned the property even long after they sold most of their stations to News Corp. (thus forming the Fox network), before eventually selling the land to the L.A. Unified School District, where a high school currently sits on the land. KCAL (going back its days as KHJ-TV) was based at studios adjacent to the Paramount lot in Hollywood (in the same building that housed KTLA when it first launched in 1947), before joining KCBS at Columbia Square not long after being bought by what's now the CBS Corporation in 2002. KABC (and ABC West Coast) was based at what's now The Prospect Studios in the east Hollywood/Los Feliz neighborhood until 1999, when they made the move to their current home in Glendale (and ABC West Coast to Burbank). Disney/ABC still owns the lot, and it's pretty much being used nowadays as an auxiliary lot for Disney Burbank. Just a few blocks southwest of ABC/KABC was the KCET facility, right on Sunset Boulevard near Virgil Avenue. KCET is currently located in Burbank, near the WB/Disney/Burbank Studios neighborhood cluster.
KCOP, before it was bought by Fox (and eventually moving in with KTTV), was based at La Brea and Willoughby Avenue in what's essentially West Hollywood for decades. The old KCOP facility sat vacant for years, although Fox used it for some productions (most notably for Gordon Ramsay's Hell's Kitchen). They demolished the building a few years ago, and I believe now condos currently sit there.