These are all of the HD/SD MPEG4 channels on T14/15 that are not carried in Puerto Rico, but because they are on those satellites, can be carried if DirecTV chooses. This does not include RSNs, International package, and Cinema channels.
T14:
294 DFCHD
295 UKIDSH
322/2049 NHKWJ
388 JBS
456 ESNE
563 YUM
602 FDTVHD
612 ACCNHD
2095 ARANG
T15:
80 COZI
83 getTV
221 CBSSNHD
267 EARTHX
279-1 OWNW
288 PBS KIDS
314 *FMC
347 TheFirst
403 UNIw
405 MEGA (Local channel already carried)
405 MEGAHD (Local channel already carried, albeit in SD)
406 TELe (Local channel already carried, albeit in HD)
407 TELw
408 UMas (Local channel already carried)
408 UMasHD (Local channel already carried, albeit in SD)
409 VPLUS
410 UVSO
411 TLFI
412 MMTV
414 WAPA (Local channel already carried, albeit in HD)
415 VROLA
416 NTEL
417 CARA
418 NTN
420 ATRES
422 CIES
423 CILA
424 CINO
426 STZES
428 CATV
429 TLCN
431 PMTV
432 ZooMoo
433 BDMX
434 HHG
436 DFAM
438 ECUA
439 PERU
443 HISE (LatAm version already carried)
445 MTV3
446 MEX
447 ONCE
449 SONYCN
450 VMOV
452 DEPC
453 FORO
457 ECTV
459 A3CINE
462 CINEMX
463 DSTESP
466 ESPDR (HD already carried)
468 GOL
469 TYC
472 NVTV
473 ENews
474 MNMXUS
511 HBOL (HD already carried)
568 SONYHD
570 SMTHHD
571 CIHD
578 PTVE
807 MCSW
824 MCLO
852 MCJZ
853 MCEL
855 MCJV
861 MCKP
865 MCCM
870 MCRM
876 MCMX
877 MCBP
880 MCPF
881 MCTI
882 MCIT
883 MCIR
884 MCNS
9577 BSN
9581 BARVAN