Does anyone have a Samsung SIR-T160 or SIR-T165?
Which one should I buy?

SIR-T160 Key Features:

receives and decodes all over-the-air HDTV/SDTV formats, DIRECTV (standard and high-def) signals, plus over-the-air analog (NTSC) signals and most unscrambled analog cable channels
rear-panel switch for selecting output (1080i, 720p, 480p/i)
7-day Electronic Program Guide (program information availability depends upon the program source)
one-touch VCR timer control (includes IR blaster cable)
on-screen Caller ID display (requires Caller ID service)
multibrand remote (TV/DVD/VCR)
2 set of A/V outputs (2 composite, 1 S-video, and one 1080i/720p/480p component video)
DVI HDTV output with HDCP copy protection (1080i/720p/480p); cable included
RGB output — D-sub 15-pin connector (1080i/720p/480p)
3 RF inputs (Satellite, Antenna, Cable)
RF output
optical and coaxial digital outputs for Dolby® Digital/PCM audio
16-15/16"W x 3-7/16"H x 13-7/16"D
warranty: 1 year parts & labor


SIR-T165 Key Features:

receives and decodes all over-the-air HDTV/SDTV formats, plus over-the air analog (NTSC) signals and most unscrambled analog cable channels
rear-panel switch for selecting output (1080i/720p/480p/480i)
built-in scaler (upconverts 480i signals to 720p or 1080i)
Electronic Program Guide (program information availability depends upon the program source)
1 set of A/V outputs (composite, S-video, and 1080i/720p/480p component video)
DVI HDTV output with HDCP copy protection
2 IEEE 1394 (i.LINK) HDTV jacks with AV control for D-VHS recorders
RGB output — D-sub 15-pin connector (1080i/720p/480p)
2 sets of A/V inputs (2 composite, 2 S-video, and 1 480i/480p component video)
2 RF inputs (Antenna, Cable)
optical and coaxial digital outputs for Dolby® Digital/PCM audio
multibrand remote (TV/DVD/VCR/cable)
14-15/16"W x 3-3/8"H x 13-5/8"D
warranty: 1 year parts & labor

Do you ever plan on using firewire ?

I will never use Fire Wire.

And I can find the 165 for about $75 cheaper on the internet.

So, would go with the 165 if the 160 does not have any advantages over the 160.

It looks like the 160 can receive a Direct TV signal, but I am not sure the 165 can receive a Direct TV signal. I guess that would be the big selling point. I am not using Direct TV now, but I might in the future.

Here is Samsung's comparison chart for the 160-165-351.

Samsung STB Comparison

Consider the 351 if you only want OTA HDTV. You can get it for $350/shipped online.

If you want direct tv you need the 160

I have the SIR-T165. Basically the 160 is for people who use direct TV, and the 165 is for people who only use OTA HDTV. The 165 also has firewire & the 160 does not. Firewire is necessary if you want to record HDTV broadcasts with a digital VCR. The 165 also has a built-in scaler to convert 480i/480p signals into 720p or 1080i, whereas the 160 does not. Basically the 165 is better in every way, EXCEPT if you use direct TV.