Probably been a while since someone asked a dump question so here goes. Why does my TV show that I receive HD channels in 1080i/25Hz. Thought it should be 50Hz? Be gentle with any answers.... Incidentally it's connected to a terrestrial aerial.
Freeview-HD is pretty well all 1080p25. Freeview-HD kit was designed to dynamically switch from interlaced to progressive within a GOP (Group Of Pictures). Most content is now progressive.
General
ID : 16517 (0x4085)
Complete name : D:\FreeviewHD\The Homesman_20170521_2202.ts
Format : BDAV
Format/Info : Blu-ray Video
File size : 35.8 MiB
Duration : 1 min 24 s
Overall bit rate mode : Variable
Overall bit rate : 3 526 kb/s
FileExtension_Invalid : m2ts mts ssif
Video
ID : 101 (0x65)
Menu ID : 17472 (0x4440)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings, CABAC : Yes
Format settings, RefFrames : 4 frames
Format settings, GOP : M=4, N=12
Codec ID : 27
Duration : 1 min 23 s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 FPS
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 102 (0x66)
Menu ID : 17472 (0x4440)
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Muxing mode : LATM
Codec ID : 17
Duration : 1 min 24 s
Bit rate mode : Variable
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Delay relative to video : -1 s 48 ms
Language : English