What are those two mods called?
Fusion City Rising is the one that I haven't looked at at all. It's the more usual format for such things - a wholly seperate new area and the beginning of the quest added to your quest list. Go to x, talk to y to start the new area. It's a new area expansion with new factions, locations, storyline, main quest and subquests all wholly contained in the new area. A DLC, basically. Quite a sizable one - they estimate 10-20 hours to complete it depending on how much you explore and how many of the numerous terminal entries you read.
Tales From the Commonwealth is the one I've done one quest on. It's different because it adds locations and quests into the Commonwealth, not as a seperate new area. Also, only 1 of the quests is automatically added to your quest list. The others...well, I don't know because I haven't found them. There's a website with a wiki for it, telling you what quests are where and suchlike. The production quality is superb. It's good enough to be official DLC and it fits seamlessly into the game. If you installed it on someone else's game and didn't tell them, they would probably assume it was part of the vanilla game.
Atomic Radio is from the same people. It's many hours of radio from the pre-war USA, i.e. in the style of the real 1950s USA. There's songs, radio plays, PSAs, trailers for films mentioned in the game or based on things mentioned in the game (e.g. films based on Grognak the Barbarian comics) and adverts for products and companies from the game (e.g. Cram, Fallons, etc, etc).
The Nexus mod page has them listed as one mod - "Atomic Radio and Tales from the Commonwealth". However, if you click on the download link on the main page for the mod you will only get Atomic Radio. You have to click on the "Files" tab and download 2 of the main files (Atomic Radio and Tales from the Commonwealth) and a 3rd one (DLC Commentary Patch for TFTC) if you have the DLC and want TFTC companions to have additional dialogue for it. The mod also adds a buildable radio tuned to Atomic Radio, so you can put them in your settlements.
Ah...I've just seen the voice acting credit list on Nexus for Atomic Radio and Tales From the Commonwealth. There's a couple of hundred people on it. That explains why the voice acting is so good.
I'd give you Nexus links for them, but this isn't the mods thread so I probably shouldn't.