Try the fans without the controller. Those cheap crap controllers can cause tons of problems.
Fans that emit interference can interfere with TVs can also interfere with cordless phones, cellphones, WiFi, etc. As the frequencies rise the likelihood lessons but harmonics can go a long way in such close proximities.
What you need to do is find some ferrite cores and use them on the fan wires and in fact, use them on all the DC and low-frequency AC wires (NOT I/O cables like IDE, SATA, USB, etc.) going to your motherboard. Place the cores as close as possible to the source of RFI.
You might also want to get wire mesh filters to go over your fans and think twice about the wisdom of that Lucite side panel, if you have one. If your fans mount onto plastic, run a ground wire from the wire mesh filter.
-Brad