Can my TV receive the win Hd and life channels that are transmitted in MPEG 4

Assuming that we talking about digital channel could be couple reasons. First- too small antenna or in wrong location. Usually at evening, night hours there is less interference from cars, running electrical equipment etc reception is better. Far away stations reception is also better at night. Trees, houses etc also affect reception. If you in USA you can use site: antennaweb.org to determine correct antenna and direction to receive channels in your location.

although channel 76 is starting transmissions on Sunday 25 feb press releases and statements from channel 7 state that channel selection and programming for sets may not be effective until Wednesday 2 march
if you have the latest digital led you beaut tv , it will still not select until 76 comes on line as there is nothing to select ( there has to be a signal transmitted for the tuner to find it)
ask the question again if you are not successful after Wednesday

If you are referring to the racing channel in Australia you have to have a tv capable of decoding MPEG-4 used by channel 78.
http://www.smh.com.au/digital-life/computers/gadgets-on-the-go/australia-embraces-mpeg4-digital-tv-with-new-racing-channel-20150703-gi4blu.html

I would be talking to my satellite or Cable provlider. Doesn't sound like you have a problem with your TV because if it will pick up one channel it will pick up all them.
Gillight

Is the antenna digital? If not its analog. Most stations are going to digital HD and dropping analog. The other 7 are still broadcasting analog. Ask station if they are still broadcasting analog if antenna is digital. If no, do a rescan of stations in menu of tv. Let me know.

That sounds like an antenna problem. Try moving your antenna around and rescanning the channels.

This tv have the capabillity for the Full HD max resolution 1080i or 1080p.The problems u have is not the tv capabilities.The tv incomming broadcasting signals are vary like DTV,SD,480i,720i low end HD.Max HD resolutions are 1080p or 1080i.

These STB262 box remotes won't work if they are not hooked up with the 720dpi option (Use HDMI Cable) -

Cheers - compac

Try the recommendations in a document posted on the FCC site (http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-291403A1.doc)

Also be aware the several stations have had problems with the transition. Some changed frequencies on which they were transmitting and encountered area coverage issues that didn't meet their expectations. They have been working with the FCC to remedy the problems and many stations have temporarily increased output power to compensate for the issues. Some of these stations may be difficult to receive and you may need to get larger antenna. If you are still having problems call the FCC DTV transition hotline at 1-888-CALLFCC (1-888-225-5322) or the TV station for advice.

1. Manually scan all channels on your TV with your TV remote and write down the channels and network shown:
(sample: 119.2 C-SPAN2 digital channel).
2. Go to Edit Channels and find the icon for C-SPAN2 (about icon 261 in my zip code). Manually change the channel from Off to On, Insert the frequency, and optionally insert the number you want the channel to show in your channel listing ( or move it manually later).

I have about 10 to add each time I reset my recorder.