For my area (Los Angeles) I can find a list of HDTV channels he
https://pastebin.com/hX3dA3t1

Here is a sample of this list:
5. {"alias": ["ASPiRE TV", "ASPIRE"], "ch_num": "185", "epg_id": "", "id": "69046426"},
6. {"alias": ["AYM Sports", "AYM"], "ch_num": "962", "epg_id": "", "id": "69026782"},
7. {"alias": ["ActionMAX HDTV (West)", "AMXHDW", "ActionMax East"], "ch_num": "533", "epg_id": "18433", "id": "69031879"},
8. {"alias": ["American Heroes Channel HDTV", "AHCHD", "American Heroes Channel"], "ch_num": "140", "epg_id": "18284", "id": "334443188"},
9. {"alias": ["Animal Planet HDTV (West)", "APHD", "Animal Planet"], "ch_num": "132", "epg_id": "57394", "id": "69045207"},
10. {"alias": ["Atreseries", "ATRES"], "ch_num": "926", "epg_id": "", "id": "1270914130"},


I am specifically interested in the ID entries such as 69046426 on the first line above.
What I want is these channel IDs for both HDTV and SDTV and I want to be able
to represent them as in this list:

69022205 kpbs-hdtv 50.1
69022348 knbc-hdtv 4.1
69022154 kabc-hdtv 7.1
69022680 kcal-hdtv 9.1
69022186 kttv-hdtv 11.1
69022684 kcop-hdtv 13.1
69028930 kpxn-hdtv 30.1
69022784 ktla-hdtv 5.1
69050084 kcet-hdtv 28.1
69022168 kcbs-hdtv 2.1

69026103 kcbs-sd 2.2

I got the final entry in this list by a brute force search
that took several hours.

I am only interested in over-the-air channels. I have tried googling for
everything I could think of but I have had no success. I would appreciate
any help.

Thanks.