I have 2 Phonak TV connectors, one is connected to my iMac via the Jack plug, and the other to my smart TV via optical out, I have never noticed any lag or latency from either setup, I found video calls on my iMac a breeze, I have a new set of Phonak Naida Paradise 90 UP BTE 675, prior to that I had Phonak P 90 UP 13 RIC’s and before that the Marvel 90’s UP 13 RIC, all excellent aids, but I find the Naida’s sound crisper with plenty of ooomph, multiple Bluetooth connections are a big advantage, with much less flaffing about, disconnecting and reconnecting… Bluetooth connections seem to be rock solid. Although the Naida’s are much bigger aids with the 675 batteries, they are lighter and slimmer than previous versions of the Naida’s, and well worth a trial for those in the severe/profound threshold… Good luck with your Bluetooth connections. Cheers Kev 
It looks like any non Phonak BT device will default to SBC even though they are APTX capable because the hearing aids do not support that protocol. The Phonak TV device seems extraordinarily expensive for what it does. Thanks for all your inputs .
The Costco TV Connector is $100 in the USA that works on the Phonak Marvel and Paradise aids too.
Around 170 $ in the UK Raudrive, so a bit more expensive! But if you think about it, tis an awesome piece of kit for 100 $ stateside… And if you compare it with other Phonak assistive listening devices like Roger iN, it’s is relatively cheap by comparison, but if money is tight, a 100 $ is expensive… I got my first TV Connector 2 as a freebie with my Marvels, bought another as I could not be bothered swapping them back and forward and I just leave them permanently wired. Cheers Kev
The Phonak version TV Connector is about $200 in USA. The Costco version that is pretty much identical is $100 US.
I recall now, someone on here saying it was cheaper at Costco, but you could not buy it unless you had bought your aids from Costco? Is that correct Raudrive? Cheers Kev
Yes, that is correct at my Costco. I have read otherwise at different Costco locations. Just have to ask.
Another possibility is having a friend who wears the KS9 or Brio 4 aids pick the TV connector up for you.
Thank you Rick… Will the Costco version work with Marvels and Paradise or only with rebranded versions of Costco Phonak aids, that would be handy info for those who have access to a Costco store… In my book, $100 saving is better in your pocket 
Hi Kev,
I purchased a COSTCO tv connector that works perfect with my Paradise 90Rs. The tv connector looks identical to the Phonak version I almost bought from my Audi, and the COSTCO tv connector was only $100. At the time I ordered the tv connector from COSTCO I was returning a pair of Resound Preza that I was trialing. So it didn’t seem to matter to the COSTCO in Clearwater, FL.
Thank you for that info, tried & tested, and half the cost, excellent stuff… Cheers Kev
If you are new to hearing aids, you need around 4 weeks for your brain to adjust to all the new sounds it is receiving. It can be overwhelming at first, it was for me. While it may seem too loud at first, you will adjust and it will be the new normal. Just wear you aids as much a possible so you adjust faster.
From the picture of the Cosco TV connecter , it does not have an optical input. My TV’s only Audio output is thru optical cable.
Hi Mode1flyer, according to this Kirkland 9’s user guide, it does have optical out on their TV connector, and it looks exactly the same as my Phonak TV Connector 2? Cheers Kev
https://ks9userportal.com/how-do-i-connect-my-hearing-aids-to-a-tv/
I am sorry to say… it is an optical input from the Tv only. There is no output connection of any kind so you will need a splitter. It does look identical to the Phonak TV connector and the manual looks the same too.
Thanks kevels55 it looks like the Kirkland TV Connector does have a Toslink input. I will need in addition a Toslink splitter so the audio signals go to the both the Sound bar and the BT transmitter simultaneously.
I wonder how the sound would be like when the TV connector and the sound bar is on at the same time.
If it is the same as mine it works perfectly with a sound bar. Both are in sync with no latency. You can keep both on with no problems of echo/doubling etc
Yeah, that’s the setup I have with the splitter, works perfect. The TV Connector doesn’t use Bluetooth, 'tis some other way of connecting to your aids, I forget what its called, but it isn’t Bluetooth. Cheers Kev
According to Phonak , they use A2DP for TV and HFP for phone .
I have Phonak Marvel and wife has Phonak Paradise. We have Phonak TV Connectors on each of our two smart TVs, which are also both equipped with sound bars. Bought inexpensive optical splitters on Amazon. TV optical audio output goes into splitter, then one side to sound bar and the other to the TV Connector. Works great for both of us. We don’t even use the sound bars anymore, but I keep the TV internal speaker audio up enough to hear it when a notification comes to the HAs from my phone which momentarily supersedes and mutes the signal from the TV Connector; that way I don’t miss any dialogue due to the interruption from the phone. There is no discernible latency, so the TV speaker audio essentially running in the background is totally in sync with the hearing aid audio and therefore not annoying in any way.
I do have the Phonak TV adaptor and I detect no latency. I installed this Optical Audio splitter on my TV which allows the Phonak TV adaptor to work independently of the TV volume adust.==> https://www.amazon.com/EMK-Toslink-Digital-Optical-Splitter/dp/B07KFCKQYQ When I am alone the TV volume is at 0, yet I am able to adjust the volume for comfort via the app. What I find extremely annoying about the app, is that working distance (range) is poor. If I leave the couch to get a beverate or snak in the kitchen, the audio drops out. Also, even if I am on the couch with my phone on my lap, after a certain time the TV program app and HAs disconnect, leaving me unable to adjust the volume during a TV program. I have to reconnect the app to the HAs and it just seems to take forever. I’ve written to Phonak about their app, as I think it needs to be blown up and made better, but it probably won’t happen soon.
I have Phonak Audeo Marvel 70s and I had a difficult time finding a BT transmitter that would pair with the HAs. I finally found this Anker Soundsync A8327 ==> https://www.bestbuy.com/site/anker-soundsync-portable-bluetooth-transmitter-with-10h-battery-black/6413588.p?skuId=6413588&ref=212&loc=1&extStoreId=813&ref=212&loc=1_mobileaccessories&gclid=CjwKCAjw6qqDBhB-EiwACBs6xxUAa7AKM5kFG8UXPFTfrNKhxO5XZSMPAsbBd641br-TzNSCBZqb2hoCQhQQAvD_BwE&gclsrc=aw.ds
I use this on the audio output port of a handheld police scanner. I am sure it would well with a laptop of TV if equipped with an audio output jack.