So, been a huge fan of The Nanny TV Show since forever. Also, been very annoyed Season 4, 5 and 6 were never released on DVD and probably never will be (licensing issues, contractual issues with appearing guest stars..and Sony sucks).
The copies floating around - mostly Lifetime TV captures - are ridiculously bad in quality and out of order.
Lately I stumbled across a much higher quality rip from a Bulgarian group shown on bcomedy in Bulgaria. But of course, no English audio. Well, actually, English audio but Bulgarian recorded over it, not in a separate channel or file, no, just straight over it. They should be shot for this.
I also found by chance, a not quite as good copy from Russia, and yay, English and Russian in separate audio channels.
I used the DVB quality (better than anything around, as close as you'll ever get to DVD quality for those seasons) Bulgarian Video and combined it with the Russian English audio.
This was a lot of work, about 3 weeks, since different channels cut out pieces and blend in ads wherever they damn please, so synching it up was a piece of work.
Specs below, I tested the files on all of my TVs (via USB, WD TV extender and streamed directly), the iPad, iPhone and my computers and they work fine. I do however recommend that you download a couple of eps to try for yourself before you give the whole seasons a go.
General
Unique ID : 253891618518316809573196751906083961412 (0xBF01BF4032BCEC57912CEDE7CD77FA44)
Complete name : G:__TIXATIThe.Nanny.s04.DVBthe.nanny.s04e01.dvbrip.xvid-phen.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 247 MiB
Duration : 23mn 0s
Overall bit rate : 1 504 Kbps
Encoded date : UTC 2014-05-26 10:53:36
Writing application : mkvmerge v6.9.1 ('Blue Panther') 64bit built on Apr 18 2014 18:23:38
Writing library : libebml v1.3.0 + libmatroska v1.4.1
Video
ID : 1
Format : MPEG-4 Visual
Format profile : Advanced Simple@L5
Format settings, BVOP : Yes
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : V_MS/VFW/FOURCC / XVID
Codec ID/Hint : XviD
Duration : 23mn 0s
Bit rate : 1 346 Kbps
Width : 704 pixels
Height : 528 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.145
Stream size : 221 MiB (89%)
Writing library : XviD 1.2.1 (UTC 2008-12-04)
Default : Yes
Forced : No
Audio
ID : 2
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Codec ID : A_MPEG/L3
Codec ID/Hint : MP3
Duration : 23mn 0s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 21.1 MiB (9%)
Default : Yes
Forced : No
Disclaimer:
Season 6 has a lot of Recut episodes. That means, I had to cut out scenes from the Lifetime airing because there was no audio available or the other way around. It's not having an impact on the eps per se, it's just a little sad that some jokes had to go because of greedy ad-focused stations or moral differences in eastern European countries. Still, it's all good.
Those eps have been encoded using AVC, not XviD, and are slightly larger in size.
Also, all eps should be in-sync (audio/video) most of the times. But as mentioned, it wasnt easy and there can be parts, where sync is not perfect but usually it's within the milliseconds range.
End credits almost never have audio or the appropriate music because of early cut-outs of some stations.
Fran's last address to the audience in the show's finale is not sync and missing some audio. Couldnt be bothered to fix this too.

The Nanny Season 4 DVB (high quality)