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Discussion in 'TiVo Series3 HDTV DVRs' started by hybucket, Jul 13, 2007.
MRV via coax? How? the Series 3 and the HD don't even have coax outputs.
The VIXS XCode 2115 chipset in megazone's photos looks interesting...
This link has the specs for the 2111:
Note that it can to HD to SD transcoding and even MPEG2-HD to MPEG4 HD transcode. So, theoretically, TiVo could enable a down-rez function for MRV (would probably have to do it in the background and disable viewing since this is probably the only decoder in the box). They could also enable an HD 're-compress' function to squeeze HD shows you want to archive for longer term to MPEG4 so they take less HDD space.
I do not see H.264 or VC-1 support in the 2111 but the 2115 may have it. If not, that may limit the formats that the S3 line may eventually support for PC transfers since they would probably limit to the formats both boxes could display.
Its a good thing the S3 sold according to expectations or they might have 'em on hand until 2010.
I would be suprised to see the current S3 model continue to be produced. I see the TiVoHD as a replacement.
From Tivo faq
How is TiVo HD different from the TiVo Series3 HD Digital Media Recorder?
Both products are designed on the Series3 architecture so the core TiVo functionality is the same. However, the TiVo Series3 HD Digital Media Recorder will remain as our premium HD DVR product with features such as a bigger hard drive (250gb), THX Certification, front panel display and a programmable, back-lit remote control.
Weaknees even have HD upgrades for it alreay: http://www.weaknees.com/tivo-hd-tcd652160.php
160GB is just pitiful for an HD recorder (says the guy with the 750GB S3). That'd be the first thing I'd do if I got one.
Sorry, people are not going to pay $300 more for the exact same thing minus a fancy remote($30) and 90GB of storage($?? but with the soon available upgrade eSATA drives from BB this is more the case)
Some of the specifications posted earlier to this thread were off the mark. From zatz blurry shots, it looks like:
TivoHD Specifications (TCD652160)
- BCM7401 DVR CPU w/ integrated MPEG-2 and MPEG-4 decoders
- 2x ATI Theater 314 based tuners
- 2x Philips/NXT SAA7138CHL ADC, each with 16MB RAM (2x NT5DS8M16FS-5T)
- VIXS XCode 2115 IC (CableCard interface + 2x MP@ML encoder)
- 256Mb DDR400 SDRAM (4x NANYA NT5DS32M16BS-5U)
- 160GB Western Digital WD1600AVBS SATA hard drive
- Xilinx Spartan-? FPGA
- Cheaper PCB w/o PCI slots
Updated: July 24
This thing at $299 down plus $6.95 a month, versus the cable DVR at $0 down and 11.95 a month. Break-even is at about 70 months. This thing won't last 6 years, so there must be some value added for the increased price over the cable DVR.
Estimate it lasts for 3 years. Present value of 36 monthly payments of $6.95 (assuming 5% interest) is $231.89. Plus $299 box fee makes the present value to own and use for 36 months to be $530.89. Present value of 36 monthly payments of $11.95 is $398.72. Difference is $132.17, or $3.96 a month. Plus the cost of cablecards. That's the cost of the TiVo service. Worth it?
I'm in CA and my box is in MD, but I think there might have been more than 4 Nanya chips. Maybe 6 or 8 total? When Megazone shows up, he can probably tell us.
Comcast gives me my cards for free.
Did you notice any differences in tuning QAM channels between the Series3 and SeriesHD? Quoting from the ATI Theater site:
Did you see anything to suggest that the equalization in the TivoHD might be better than the Series3?
Where are those pics?
It wasn't clear to me that the MPEG 4 transcode was HD? What is ASP L5?
What catches my eye is the MSDRM and Real Networks DRM. Could this lead to protected WMV content being available?
Does the S3 have any of this too?
ASP5 L5 is the MPEG-4 (Part 2) profile that allows for frame rates up to 720x576 @ 30 fps.
Tthe previous poster misunderstood. The XCode 2111 doesn't do MPEG-2 HD to MPEG-4 HD.
The original Series3 used a Broadcom BCM7042. Broadcom doesn't have the datasheet for their part, but a BCM7041 is basically two BCM7042 encoders on a single chip. It has no means to encode or transcode to MPEG-4.
I think TiVo can get away with charging a premium for the S3. They should probably bump up the hard drive space but I think there is a market for people who want the best of the best in their HT setup and this usually includes THX certification. Just because you don't find a use for it doesn't mean no one will.
I thought so about the S3. Someone said tonight it has a transcoder too. So they were wrong.
One thing about the specs:
The next to last line HDTV --> HDTV. What does that mean then?
The full specifications for the BCM7041 aren't published. It may do HD MPEG-2 -> SD MPEG-2 transcoding. Broadcom's part with MPEG-4 encoding and transcoding is the BCM7043, and it's not done yet.
I don't know. Passthrough, maybe? But for HD encoding, it would need to say MP@HL. For HD transcoding, it would need to say High Profile (HP), not Advanced Simple Profile (ASP).
More curious is the specifications state "Single D1 MPEG 2/4 (ASP, SP) encode capable." A single XCode 2111 cannot encode two analog streams at once. Edit: The TivoHD uses the 2115, not the 2111, so it's likely that the 2115 adds a second encoder.
Now that I know where to look... the chip I see in the picture says 2115.
And there is no 2115 in their product list or found upon a search.
From the information that you currently have, would you say that one platform is better than the other? If so, why?
The diagram on this page http://www.vixs.com/sections/markets/applications/applications_pvr_stb.htm
seems to show two analog inputs
This sheet on the 2121 shows two hybrid tuners...
This sheet on the 2111 shows one hybrid tuner
The 7041 appears to have two analog encoders...
The 7401 has one or two encoders?
could the TiVo HD be using the 2115 and the 7401 for two analog encodes?