Listed here are some of the UNID logos I've logged via Es with notes from my log as well as the reports posted on mailing lists. The first one is the middle east received on 1st July 2004.

During an intense 2 hop Es opening to the Med & Middle East this logo was observed on E3 TLHC with arabic text TRHC. This was seen via waterfall a few times, had a distinctive unstable carrier and usually appeared with JRTV Jordan. It looks similar to the Saudi Arabian logo as shown right and here. Inital  suspicion was possibly Syria using a different and previously unknown logo but could it have been Saudi Arabia?

Information regarding the Dharhan transmitter is, as usual contradictory. The old Aramco E3 TX is reported on Wiki to have been switched off in 1998 but this report from 2005 shows the by now renamed TV3 to be continuing although I've found no trace of it on the usual search engines and satellite logo pages.

Canal+ from Corsica at 700 miles was being received on L2 at the same time as JRTV Suweilih Jordan 2220 miles. Dhahran at 3100 miles is at the maximum distance for 2 hop Es or the minimum 3 hop distance. The subsequent reception of Cameroon via Es shows this distance is quite acheivable. This map shows the geometry.