Power on doesn't turn on TV

I have new Explorer 8300HD dvr with URC-8820-Cisco remote connected to JVC LT26X575 TV. All seems to be working fine except for the following: When I push and hold the POWER button on the URC, the dvr and TV both turn off. If I push the power button again immediately, the dvr and tv turn back on. However, after turning off, if I wait a few minutes, only the dvr turns on, no matter how long I hold the Power button. (The TV button on the URC does blink but nothing happens.) If I use the remote of the TV, it turns on right away.

There are several codes for JVC in the 8820 setup guide. I have tried them all. Some do not work and are clearly wrong. Several work but all give the behavior described above.

Before connecting the dvr, I used an Explorer 3250HD Set-top box with URC7820 remote. I did not have to use the TV remote to turn on the TV.

Any idea how I can turn on the TV with the dvr remote?