I understand problems happen from time to time with new equipment, but this is starting to get ridiculous.

This weekend, THREE of my four segments had some sort of DirecTV malfunction, and I had to be the one to guide the crew on an attempted resolution on two of the flights.

CO 249 - FLL/IAH - system worked OK
CO 467 - IAH/SEA - onboard video OK, satellite could not lock on a signal even while at the gate, and programming was going in and out constantly - once in flight, it was totally unusable. I had the lead FA reboot the system, and it corrected for a few minutes, but lost the lock again and they gave up
CO 1766 - SEA/IAH - I missed the upgrade (*cry*), and found my seatmates on the exit row (others reported this throughout the aircraft) unable to process their payment, both with a Chase card ($4) and other cards ($6). No system reset attempted, but the crew took a note of the affected seats for a maintenance report
CO 1748 - IAH/FLL - same problem as CO 467, but this time I asked the lead FA to reboot the system while we were at the gate - she did so, but it took TWO reboots before the dish would lock properly, then programming was OK

This is not the first time I've noticed the system is very unstable and signal loss is becoming a big problem. Not sure if it's a hardware or software issue, but CO and DirecTV need to look into this and get it fixed.