I live in the Los Angeles area (Inglewood to be exact), and I have Time Warner in my home, mostly for the internet service. However, I have an extra cable line in my bedroom, and I have it connected to my TV (I also have DirecTV too). Anywho, our TWC system just added a bunch of new HD network during the Summer Olympics...such as A&E, CNN, TLC, HGTV, Food Network, ABC Family, Disney, Discovery, National Geographic, ESPNews, Golf/Versus HD, and History Channel. My TV is cable-ready, including being capable to receive digital channels. All those of channels I've mentioned, plus all of my locals, WGN America, NBA TV, the C-SPAN networks, TV Guide Network, and all 48 of the Music Choice channels I currently get in the clear.
Here's our HD channel lineup (38 Channels, not counting the duplicates)...
402 KCBS
404 KNBC
405 KTLA (CW)
407 KABC
408 KOCE HD (PBS)--different from regular KOCE
409 KCAL
410 KCOP (My)
411 KTTV (Fox)
412 KCET (PBS)
413 Special Events HD--usually Fox Sports Net HD
414 Palladia HD--formerly MHD
415 TNT
416 HD Theater
417 TBS
418 Discovery Channel
419 Universal HD
420 HDNet
421 HDNet Movies
422 Mojo
423 Golf/Versus HD
424 ESPN
425 ESPN2
426 ESPNews
427 HBO--also on Channel 502 in the HBO tier
428 Showtime--also on Channel 552 in the Showtime tier
429 Starz--also on Channel 572 in the Starz tier
430 Cinemax--also on Channel 522 in the Cinemax tier
431 HD Pay-Per-View
432 CNN
433 HGTV
434 Food Network
435 Disney Channel
436 ABC Family
437 TLC
438 A&E
439 History Channel
440 National Geographic Channel