Just started watching the original Route 66 series, viewing the episodes in the order in which they were originally aired. I only saw a few on KVOS-TV where they were originally aired for Greater Vancouver viewers like me.
Within the first 3-4 episodes, the guys (Martin Milner and George Maharis) turn on their car radio and I get to hear a clear WWL ID as they drive towards New Orleans. For a time, they were the most distant radio station I heard from East Burnaby, and remain, to this day, the most distant station I was able to pick up on my little 8 transistor radio that I bought at the Seattle World's Fair.
Unlike most of the 1-A Clear Channels of their day, WWL, and WBZ Boston, had directional patterns that favoured my direction. You'll see the WWL pattern below.
For good reason. With transmitters located right on the Coast, a single tower non-directional pattern would see half their power "dumped into the ocean".
I really miss the days when, at night, there was only one station on a frequency in North America: the 1-A Clear Channels. I don't know any scientific way to say it, but WWL always seemed to have the strongest signal for their distance. KGO in San Francisco and KFBK in Sacramento were also serious contenders for that title.